JAVA and J2EE Training in Chennai
Learn Java Training In Chennai At FITA – No 1 Java Training Institute In Chennai. Call 98404-11333 For More Details. Register today for learning basic core Java Training to go for advanced J2EE Java Training in Chennai.
Java is one of the most powerful and secure programming languages available in the market that was created more than 20 years back. From large super computers to mobile phones, millions of applications run on Java platform. Java was introduced more than two decades ago and it is still considered as an evergreen programming language in the software development industry for its portable, secure and robust features. There is a huge demand for Java and J2EE developers to develop new applications as well as to maintain the old applications developed in Java.
FITA offers a wide range of JAVA training in Chennai to meet the growing corporate needs. The course materials and syllabus are prepared by trainers who have many years of experience in leading IT companies. We provide Java Training in Chennai with Placement in leading companies. Walk into our Office to find the list of Companies our Students are placed.
Our Java Course Syllabus is designed to master your skills in Java programming, development and other essential tools required for developing applications in J2EE, J2SE and J2ME. Our course kit includes extensive practical oriented training pointing real-world problems that help students to gain industry exposure and confidence to work with any job requirements.
Java courses in Chennai at FITA branches are offered by experienced IT professionals with 10+ years of real-time experience in software development industry. Our trainers have strong experience in Java software development so that best quality training is guaranteed. We offer professional training in Java technologies by Java experts with the objective to bridge the gap between college education and IT Industry. After completing our Java coaching program, we offer 100% placement and Java certification support to all our students. This unique approach makes us the best Java training in Center in Chennai.
Get Trained at FITA and become a JAVA Guru!
Why Choose FITA for your JAVA/J2EE Training
Below is the High Level JAVA course syllabus that can be altered to meet your needs. Please walk into FITA T Nagar or Thoraipakkam or Velachery branch for a detailed JAVA Syllabus.
Java Training in Chennai Course Syllabus
Our core java training module begins with introduction to java, OOPS concepts, semantics, multi-threading, constructors, GUI programming, exception handling, applets, etc. Kindly speak to our Education Counselors for the detailed and best Java training course syllabus
J2EE Training in Chennai
People with basic experience in JAVA and want to go beyond with a deeper knowledge, undergo JAVA J2EE Training in Chennai from FITA. J2EE (Java 2 Enterprise edition) is an environment for deploying and developing enterprise applications. It is used for distribution in a large scale smart network and web services. J2EE is platform independent and has set of services, API (Application Programming Interface), and protocols for developing multi-tiered, Web based application. J2EE consists of the servlet, framework, JDBC, JQUERY, JSP and much more. Some of the topics are discussed below.
J2EE is a vast topic which can be discussed in our J2EE training institute in Chennai. To know more about the concepts and technology, you can undergo J2EE Courses in Chennai by our professional experts in FITA.
What will you learn from Java Training in Chennai?
Scope of JAVA
Everybody must agree to the fact that the Java is one of the best things happened in the IT industry. It has a sustaining eco-system right from the mobility to the middleware. As it is platform independent many users choose Java to work with and it is considered as a user-friendly platform. Presently Java is the most preferred coding language in the entire IT sector and also among developers and no doubt it would have the same place in future as well. Right from the beginning of the career Java developers will have a decent package and they get a very good pay once they get succeeded in their first project. If you have a proper technical knowledge with a valid certification from any of the well-reputed institution, you can fetch a great job in this Java field, just for this reason many people prefer taking Java Training in Chennai. There are lots of onsite jobs available for Java developers and if you choose Java as your working field then you can fly to abroad for your job. To achieve all these you must have clear knowledge in Java and it is recommended to take up a good J2EE Training in Chennai who could teach you all the concepts in depth. And the other important fact is that Java field is one among the highest paid jobs in the IT sector. So, without any further delay, it is better to get jobs in Java by taking up Java Course in Chennai. Even though various programming languages are evolving in the recent days, Java is considered to be the most wanted high level language to build various applications which are very useful. Java demands the highest position in the Job market because many MNCs require persons with Java knowledge and good skill sets in it. To enhance your knowledge and for your career growth, enroll now for the best Java Training in Chennai.
Recommended by Students as No 1 JAVA Training Institute in Chennai!
Do not wait anymore! Call Us @ 98404-11333 to know more about JAVA J2EE Training in Chennai. You can also contact us by submitting the Quick Enquiry form on the right side of this page to know more about the JAVA Course in Chennai.
Other Recommended Java Trainings
FITA academy is definitely one of the best institutes to learn IT studies I have learnt as many things related to JAVA which will help me in interview as well in practical work. Being in FITA I have also gained confidence in JAVA. My trainers are very much skilled starting from basics to crack an interview, He taught me everything. It’s really great for being a part of FITA Academy.
Hi, I am Gowthm. It’s my pleasure to state that I had been the part of FITA educational training institute for Java Course in Chennai. Here the training was extremely good. My trainer offered me the complete training on Java with practical sessions and real-time projects. FITA stand out from the crowd of IT training institutes as they offer quality training. I would recommend FITA for anyone looking for Java Course in Chennai. I got placed in a company called “SRINSOFT” through FITA guidelines.
Hi, I am Priscilla, It’s been a great experience to study in FITA through which we gain knowledge about JAVA. Here the service is too good and I am so glad to complete this JAVA Training in Chennai at FITA. After joining here I got placed in CTS and FITA helped me to achieve in my career too. I take this moment to thank FITA for supporting every individual to develop their career.
My name is Pradeep, I did Java J2EE Course in Chennai at FITA. My trainer was very good at Java & J2EE concepts. When I entered into FITA I know only the fundamental stuffs in Java programming, after joining here I got more exposure in Java. Now I have great confident on my knowledge and I am ready to write code for any applications using Java, so If you are interested to learn Java, I suggest you to take Java Training in Chennai at FITA Academy.
FITA was very helpful in developing core knowledge in JAVA . Now i am able to write any program based scenarios given. Trainers were very helpful and I was having a good rappo with them in terms of technical communication.
FITA Academy, very good place to learn JAVA , J2EE. My trainer helps me to understand what is Java and he clearly explained the coding part. If anybody wants to join Java I hope this is the correct place to learn IT courses.
The Core Java classes at FITA were very flexible and moreover were practical combined classes. So it was easier to cope up with the classes. All the topics were explained with maximum clarity.Had a great experience to be a student of FITA.Thanks FITA Academy
It was a wonderful experience pursuing the java+testing courses here. Got to learn new things. Everyone was so supportive, the coordinator, the trainer, they supported a lot. Whenever extra class was needed to be arranged, the coordinator and the trainer were always ready for it. Trainer was very helpful, he helped me a lot to understand the concepts. Even in between the trainer used to conduct mock tests to ensure we are really understanding the concepts. Not only theoretical part they mostly focused in the practical, live projects. Happy to do the course from this academy. FITA rocks
Java Interview Questions
Java Interview Questions and Answers
Before attending the Java interview it is important to know about the expectation from the point of view of the companies. The basic knowledge about the latest changes in the core java with java SE8 like the lambda expressions, streams, Java data and time API are key points to be kept in the mind before attending the interview. Start answering the questions with the challenges and industry knowledge with respect to Java and related to your previous profile. New features in Java 10 release like the local-variable type interface, implementation of additional Unicode extensions of BCP 47 language tags, enable the hotspot VM and allocate the java object heap on another device, the root certification authority certificates in the JDK. JAVA Training in Chennai helps the learners to create great products and gain huge knowledge.
OOPS concept, JDBC skills and the frame work knowledge are the important skills needed to evaluate the skills of the employee. Let me discuss some of the tips to crack the Java Interview. The tips can be broadly divided in to two categories such as knowledge preparation and the mind preparation. Let us deep dive in to the topic. The mind preparation is nothing but the practical knowledge which is achieved by constant practice in to the concepts of JAVA. Java Course in Chennai trains the students with mock interviews which gives an idea to handle the interviews with proper planning with respect to the time taken for each question.
- What is the year of release of Java?
Java is released in the year 1995 and it is evolving in the industry for the past 23 years. It is the high-level programming language and it runs on Windows, Mac, and other variations of UNIX.
- List out the platforms supported by the Java?
Windows, Mac, and UNIX/Linux are some of the platforms which support the Java. The UNIX or Linux supports Ubuntu, red hat and sun Solaris.
- Which function in the java makes it executable on other processors?
The compiler in the JAVA saves the file as architectural-natural object file format. The architectural format aids the compiled code to be executable on other processors. Java Training Institute in Chennai provides the opportunities in multiple industries and makes the students to know about the scope of learning JAVA.
- What is class? What is the difference between the class and interface in Java?
A class is the template which is used to create the objects, define the data types, and methods. The class properties are mentioned in the class objects. Abstract class is used for the instance methods and it is used to implement a default behavior. Interface can declare different constants and implement default behavior. Abstract class has only one member like private and protected whereas interface has all public members.
- Where static variables, static methods, and static classes are used in Java?
Static things are used in Java with a block of code in any class indicate the virtual machine starts and the instances are created before itself.
- How to handle the immutable object in the Java?
The immutable objects are non-final but private. The immutable objects are changed using the constructor. The mutable object should be prevented from leaking any reference from that member. Best JAVA Training Institute in Chennai provides in-depth knowledge about java and java supports oops concept which is the base for multiple other technologies.
- What is the use of singleton class?
The singleton class is used to create object, restrict the number to one and provides flexibility to create objects if the scenario changes.
- Write the value of the float and double in Java?
The value of the float is 0.0f and the value of double is 0.0d.
- What is Erasure?
If the runtime has no idea about types of generic objects like list<integer> then it is called as Erasure. This is the JVM phenomenon with respect to the generic objects. JAVA Training Institute in Chennai train the students with clear knowledge about the development environment, run time environment and coding for the virtual machine.
- How Dot operator is used in Java?
Dot operator is used to access the variables, methods of the class objects and sub-packages from a package.
- How objects are transformed in to bytes in java?
Serialization is the process in the java where the objects are transformed in to bytes in Java. Best JAVA Training Institute in Chennai trains the students to write generic and reusable codes to gain in-depth knowledge in to coding.
- How to share objects in a safe way in multi-threaded programming like java?
String class is used to share the objects as it is immutable.
- Explain the terms Map, hash map, hashtable, and treemap in Java?
Map is an interface, Hashmap implements a map, hashmap is unsynchronized and supports null values and keys, hash table is same like hash map but it is the synchronization version, tree map is similar to hash map but uses tree to implement the map in the Java programming. Java Training with well-organized classes and good learning strategies will sharpen the programming skills of the learners.
- What is the result of the hash code function?
A weak hash code function will result into frequent collision in Hash Map and this leads to increase the time to add an object.
- Explain the importance of the getters and setters in Java?
The setters and getters use the interfaces and it will hide the implementation details. This process of hiding is helpful to make the member variables public in java. Java Classes in Chennai offers training with small batches and project oriented classes which aids for the continuous learning and in-depth knowledge of the learners.
- Is it possible to run the JVM with same class and many packages? Explain how?
Yes it is possible because it loads the class with one time only and the same package can be imported with the same class in the JAVA.
- What is the function of throw and throws in JAVA?
Throws is used for the declaration of the exception and throw is used to trigger the exception. Best JAVA Training in Chennai offers java course with expert trainers because they know that JAVA is the programming language with highest demand globally.
- Describe the significance of the order in the statements for FileNotFoundException and IOException?
FileNotFoundException is inherited from IOException and the exception’s subclasses are caught first.
- What is the difference between ready state and wait state in Java language?
The yield() method is used for the ready state and Sleep() method is used to wait state. JAVA Training Institutes in Chennai offers customized courses for the beginners and experienced professionals.
- Which class is used if the exact size of the array is not known?
Vector class is used to implement a array of objects which grows and it is used to know the exact size of the array.
- Mention the bits used to represent Unicode, ASCII, UTF-16 and UTF-8 characters?
Unicode use 16 bits, ASCII use 7 bits, ASCII use 8 bits, UTF-8 use the 8 or 16 or 18 bit pattern, UTF-16 use 16-bit and larger bit patterns to represent in JAVA programming. JAVA Courses in Chennai trains the young minds to acquire the full focus in to the programming and help to get placed with in short span of time.
- What is the use of the Applets?
Applet viewer or web browser is used to transform the small program from one computer to another computer.
- How to write applications in the different languages to serve different countries?
Locale is an object which is full of the geographical, cultural and political information. This object helps with custom codes and conventions to write the applications in different languages.
- Describe the benefits of java package?
Java package is used for organizing projects which consists of multiple modules and they protect them from unauthorized access. Core JAVA Training in Chennai is the best course for the beginners as core java is used in programming, automation and also to use the Devops.
- Is it necessary to import the java.lang package in the JVM?
No, it is loaded in the JVM by default.
- Explain the terms public, static, void and main in the JAVA?
Public explains the access modifier and it specify that it can be accessible by any class.Static is accessed without creating instance, void will not return any value, main is the method where the main execution occurs and it is the starting point for any application with a particular signature only, and string is the parameter to be passed to the main method. Join the Java Training Course in Chennai and become a good follower to the Java community which is the big community in the world.
- Justify the statement that Java is not 100 percent object oriented programming language?
Encapsulation, data hiding, inheritance, polymorphism, abstraction, predefined types, defined types and all the operations are through the methods exposed at the objects shows that Java is object oriented programming language. The primitive data types such as boolean, byte, char, int, floar, double, long, and short shows that java is not object oriented programming language.
- What is the purpose of the wrapper classes?
The wrapper classes convert the primitives in to reference types and every primitive data type is wrapped with a class.
- What are the two types of constructors in JAVA?
Default constructor and parameterized constructor are the two types of constructor in JAVA.
- List some of the difference between the array list and the vector?
Array list is not synchronized and vector is synchronized, Array list is fast and vector is slow, Array list increases the array size by 50 percent, vector is double the size of its array, array list does not define the increment size and vector defines the increment size, and array list can only use iterator and vector uses both enumeration and iterator except hash table. J2EE Training in Chennai is conducted with a focus to help the industry experts to gain in-depth knowledge in to java.
- Bring out the differences between equals() and ==?
Equals() is used for the object class in java and it is used for equality between two objects. == is binary operator which compare the primitives and objects.
- List out the differences between heap and stack memory?
The stack memory use the one thread of execution, heap memory uses all parts of the application, stack memory cant access the other threads, objects stored in the heap are accessed globally, the system in stack is called as LIFO, the system in the heap is based on generation, stack exists until the end of the execution, heap is from the start to end, stack memory contains the primitive and reference variables, heap memory contains all the objects. JAVA J2EE Training in Chennai is the best training to enter in to the software world and get the on-site jobs.
- Mention some of the feautures in JAVA9?
Java 9 REPL (Jshell), java 9 module system, factory methods for immutable list set Map and map entry, private methods in interfaces, reactive streams, and GC improvements are some of the feautures in the java9 which makes as a popular language.
- Mention some of the features in java 8?
The important features in java 8 are interface changes with default and static methods, functional interfaces and Lamda expressions, java stream API, and java date time API. These features made the JAVA as a popular and high programming language. JAVA J2EE Training Institutes in Chennai provides the high class training with real time projects to hone the technical skills of the learners.
- Is it possible to write the java program in windows and run it in Mac OS?
Yes it is possible to write the java program in windows and run it in Mac os as it is independent platform which is open to any operating system.
- Differentiate JDK and JVM?
JDK is for the development and JVM is to execute the java programs. JDk provides tools executable and helps for the debugging. JVM is used to execute and it is machine independent.
- Differentiate JVM and JRE?
JVM is for implementation and JRE is for the execution. JRE does not have tools and it is for the installation. JAVA Course is the widely learned course and it has many online materials also to help the beginners.
- Describe the term static block?
Java static block is used to create static resources when the class is used and the memory in the java class Loader execute the group of statements in the Java static block. JAVA Training in Chennai is the best training for those who are interested in the programming language and want to enter the big companies as developer. JAVA Training in Chennai is the best training for those who are interested in the programming language and want to enter the big companies as developer.
- Describe the term interface?
Interfaces are the hierarchy of code and it is the core part of the programming language. It is used in the JDK which consists of the tools required for the development. It is used in JDK, design patterns, frame works and tools. It provides contract for the sub classes to implement and also it is used to achieve abstraction in java. Java class is used to implement multiple interfaces and mostly interface is used to implement super class.
- Explain the abstract class in JAVA?
Classes and method for the sub classes are created using the abstract class. The methods with implementation and the methods without body are created using the abstract class. Abstract class is created with the abstract key word. To over-ride the methods in the abstract class, to implement the abstract methods to the abstract Class and it is the base for the sub-classes in Java. JAVA Course in Chennai explains the advantages of java like the huge number or libraries, graphics, sockets and multi thread in Java.
- Differentiate the abstract class and interface in JAVA?
Abstract class want abstract key word to create a class and interface is used as key word for the interfaces. There is method implementation in the abstract class whereas there is no method implementation in the abstract class. During implementation only one abstract class is used and many interfaces can be used. Abstract class is run with the main() method and it is not possible to run interface with main() interfaces. Search for the Best Java Training Institute in Chennai with Placement to know how the training and the placement are co-related functions.
- Is it possible to extend an interface?
Yes, it is possible to extend an interface and that is the reason why we have multiple interfaces. JAVA Training Institute in Chennai operates with a motive to help the young engineers and experienced professionals to gain in-depth knowledge in Java.
- What is the new feature in java 8 for the interfaces?
After the Java 8 the interfaces are implemented with default method and it is easy to handle the diamond problem with multiple interfaces. Java Classes in Chennai provide the flexible timings and peer approach to make the learning place as the pleasant place.
- Describe the term marker interface?
Some functionality in Java implement classes by Java and these functionalities need market interface to force the implementation. Market interface is an empty interface and it is used for the functions like serialization and clone able. Join the Best JAVA Training Institute in Chennai and know about the pros and cons of the java language to use it effectively.
- Which feature in the java makes the conversion between primitive types and wrapper classes easy?
Java 5 auto boxing and unboxing make the primitive types and the wrapper classes’ conversion easy. Java Training is the best course among the all other course as there is huge demand for the java programmers in the software industry.
- Describe the term Ennum in Java?
Ennum has fields with fixed set of constants and it is introduced in Java 1.5. Ennum is used to create the direction such as EAST, WEST, NORTH, and SOUTH. Ennum constants are static and final and used to create an enum type. Ennum type is similar to the class in Java. Java Training is the best training to gain all the skills required to enter in to the development environment and work towards the perfection of the product. JAVA Training in Chennai trains the candidates with the java SE which clearly explains the Java Enterprise Software application development and the other environments of java are web application development, mobile application development, java application migration, java application maintenance, java application testing, java custom application development, java desktop application development, java cloud application development, java CMS development, Java application development, java application integration and java application support.
- Describe the term Java Annotation?
Java annotations are the Meta data about the program and it is embedded in the program itself. Java annotations provide the information about the code and it can be parsed by the annotation parsing tool or by the computer. Some of the annotations in Java are @Override, @Depreciated and @Supresswarnings. Best JAVA Training Institute in Chennai operates with a motto to provide the best education and increase the global presence of the Indian students in the employment Industry.
- Describe the term Java reflection API in Java?
The run time behavior of a java application is inspected and modified with the Java Reflection API. The reflection API violates the rules of access modifier and breaks the design pattern such as singleton pattern by invoking the private constructor. Reflection help for the processing of the frameworks like spring hibernate or tomcat. Java Classes in Chennai is the best course to enter in to software industry and many web applications, desktop applications and the mobile applications use the Java.
- What is composition in Java?
Composition is used to reuse the code and it is a design technique to implement has a relationship in classes. Java composition uses the instance variables and other objects. The visibility of other objects is controlled by using the java composition. The objects needed are reused and controlled by using composition in Java. There are so many online materials available for Java but JAVA Training in Chennai gives practical knowledge to the students which are highly needed to clear the interview in the top companies.
- Compare the benefits of composition and inheritance?
In the composition method change in the super class might affect the subclass. If the method in the sub class and the method in the super class are different then there are chances for the compilation error but in the composition this will not happen. Inheritance is designed with a model that it exposes all the super class methods and variables to the client. There is no control and it is not possible to design the super class. The inheritance binds the classes of compile time in the run time binding under composition. When invocating the methods the composition provides flexibility. Best Java Training Institute in Chennai With Placement supports the students for the placement with regular updates and the students review is the impact which shows that students are placed immediately in the top companies.
- Mention the sorting methodology in Java?
In a collection a comparable interface is used to sort the custom objects. The compareTo is the method used for the sorting method in the Comparable interface. If there is specification in the sorting methodology then comparator instances is used. JAVA Course in Chennai know about the struggle in understanding any programming language and by joining the course the students get the confidence to take up the interview as they get the desired output from the input.
- Explain the inner class in Java?
Inner class accesses the variables and methods from the outer class and they are called as the nested classes. Inner classes are non-static nested class. Static variables are not there in the inner classes as it is associated with the instances. Java Coaching Centers in Chennai is helpful to understand the simple, clean and well-designed language and makes the programming language as the interesting one to learn intensively.
- Explain the term anonymous inner class in Java?
Anonymous inner class is a local inner class without a name. It is defined with single statement and it always extends a class and implements an interface. Java Training Institute in Chennai is wide spread all over Chennai to make the learning as a comfortable task to the students and learn the course with in the given period to accomplish the other task to pursue the career.
- Describe the term class loader in Java?
The byte code program in the memory is loaded in to the Java classloader to access any class. To access any class the class loader is created and it is extended to the ClassLoader class. The method used in the class loader is the load Class (String name) method. Java Institutes in Chennai covers the java course in two models and they are the basic for the fresher and advanced for the experienced.
- Mention the three types of built in class loaders in Java?
Bootstrap class loader, extensions class loader, and system class loader are the three types of the class loaders in Java. Java Training in Tambaram serves the learners in and around tambaram with the expert trainers and impart quality education.
- Explain the term bootstrap class loader?
Bootstrap class loader is used to load the rt.jar and other core classes. Bootstrap class is used to load the internal classes. Java Courses in Chennai makes the real problems easy and it provides the practical knowledge to handle the problems in the development environment.
- Explain the extensions class loader in Java?
Extensions class loader is used to load the classes from the JDK extensions directory. Join the Java Training in Adyar and get placed in the top companies.
- Describe System class loader in Java?
If -cp or –class path command line options are used to load the classes from the current class path to invoke a program. Join the Core Java Training in Chennai to gain the basic knowledge which is the base to learn the other technologies evolving now.
- Describe the term ternary operator in Java?
The three operands are the conditional operator used in the Java ternary operator. This is the replacement for the if-then-else statement and the ternary operator is if-else condition. Java Training Course in Chennai is the best course to get the best salary in the software industry.
- What is the function of the super keyword?
The super class method need super keyword to access the class. In the constructor method the first statement is the super keyword. It is used to invoke the Super Class in the constructor. J2EE Training in Chennai is suitable to know about the operations in the big companies and handle the big projects.
- When the break or continue statement is used in Java?
Break statement is used in the switch case and continue statement is used to skip the current iteration of for, while or do while in loop and this is used with a label to the current iteration.
- Describe the term this keyword?
The reference to the current object is mentioned with the keyword. This is mostly done when the object variables are used. Java Training in Velachery provides the quality education and clear the doubts of the students to make them as industry ready developers.
For more Java Interview Questions and Answers
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Java Industry updates
A well-known programming language in the field of Information Technology is Java, which was designed for the constant flow of code on any machine. This was considered a treasure due to its wide usage on any platform or architecture.
Java was a predominant thing in Ethiopia at that time. Java is an island, which is familiar for its coffee beans.
James Gosling introduced Java in June 1991which was known as Oak named after an oak tree outside Gosling’s office and got its name changed as Java over a period. Thus, the journey of Oak becoming to be known as Java ends here.
Java was not an open source initially, it was under the influence of GNU General Public License, and Sun released the open source version of Java in November 2006. In addition, by the month of May 2007 it was completely code free language.
The evolution of Java till date is listed below:
- JDK Beta (1995)
- JDK 1.0 (Jan 1996)
- JDK 1.1 (Feb 1997)
- J2SE 1.2 (Dec 1998)
- J2SE 1.3 ( May 2000)
- J2SE 1.4 (Feb 2002)
- J2SE 5.0(Sep 2004)
- Java SE 6 (Dec 2006)
- Java SE 7(July 2011)
- Java SE 8 (Mar 2014)
- Java SE 9(Sep 2017)
- Java SE 10(Mar 2018)
- Java SE 11(Sep 2018)
- Java SE 12 (Mar 2019)
Tomcat is considered the desirable application server for the open source programming language-Java. For the usage of Java in any web browser, it is necessary to have a Java plug-in.
Java has unlocked its doors for the interaction with other companies in order to extend the Java community. With the back-to-back, release of versions in Java its expectation for lots of changes in the near future. Thus, Java Training is very popular in the market to become successful as a programmer. FITA is rated as no.1 in Core Java Training in Velachery.
There are many programming languages present in the market and Java has secured its place right at the top of the list. Java Training in Chennai is gaining immense popularity. Sun Microsystems developed it in the year 1995. James Gosling is the one behind its innovation. The recent update released by them for Java is Java SE 11(18.9 LTS) launched in the month of September 2018.
Pattern with Predicate Utility Methods, Optional.isEmpty, Epsilon Garbage Collector are some of the noted features of Java SE 11. Soon after the launch of Java its popularity made openings for multiple configurations in order to for different platforms like J2EE, J2ME and the list continues.
Its preference amidst developers is keep on increasing as program once written in
Java can be executed irrespective of the platform it is implemented.
How is Java related to C and C++
The syntax of Java is derived from C and the object model is derived from C++. The programmers who are well versed with C/C++ language will be easily learning Java. Moreover, Java developers do not create a new thing but modify the already existing. As there is many similarities prevailing between Java and C++, Java is known as the Internet version of C++. Java was not created for the replacement of C++ whereas its creation is to support for getting solution issues, which arises in C++. Hence, Java Course in Chennai is preferred over others.
How is Java related to C#
C# language was developed by Microsoft, which has similar features with Java. Both of them are using the general style syntax. FITA, is considered as the best Java Training Institute in Chennai.
Contribution of Java to Internet
Applet is one of the contribution of Java, which reframed the networked program across the world. It is designed for the transmission over Internet and executed by web browser, which is compatible to Java. If user clicks on anything, which consists of Applet, then it will download applet automatically.
Applet runs within the web browser, which works at the client side. It is embedded in a HTML page with the use of OBJECT or APPLET tag.
Points to remember:
- Every applet is a sub-classes of java.applet.Applet class.
- They have never been a stand-alone program as they run inside an apple viewer or a web browser. Moreover, JDK enables a standard viewing tool for an applet namely applet viewer.
- For an applet window the output is not done using System.out.println() whereas done using AWT methodologies.
- For the execution of applet at main() method is not used in the beginning.
The various methods are:
- init( ) : This is the first method which is called for the initialization of variables. Moreover, it is called only onceduring run time.
- start( ) :It is the next step after init() and also called in order to restart an applet once it is stopped.
- paint( ) : The paint( ) is called every time AWT-based output of an applet needs to be redrawn, which can occur for many reasons. For instance, the window where the applet is running may be overwritten by another window. Or else even the applet window might be minimized and later on restored.
- On another instance itis also called when the execution of applet begins.
- stop( ) : This method is called when a HTML document having is left by the web browser. When stop( )is called, the applet is under execution.
- destroy( ) :This is called when the environment is the key factor in determining which applet is needed to be removed completely from the memory.
Features of Applets over HTML
- It displays dynamic web pages of any web application.
- Plays sound files.
- Plays animations
- Displays various documents
It made numerous changes in the world of Internet as the objects were able to progress freely. The 2 categories of information that are transmitted between server and client namely passive and dynamic information.
Let us get into the topic of what makes Java more prominent
Complex-free: Java was designedfor the developers to write programs with ease. It is considered easier than C++ as there is automatic memory allocated.
Multi-threaded: The capacity of a program to perform many tasks simultaneously within the program.
Object-Oriented: Allows the user in creation of modular programs along with reusable code.
Distributed: Designed to make allocated computing simple along with the networking capability.
Platform-Independent: Moving it from one system to another can be done with much ease.
Secure: The Java language is highly secured when compared with other programming languages.
Robust: It helps in eliminating error due to the presence of time error check along with runtime check.
StackAllocation: This helps the user to store data with ease.
High Performance:Java set up high performance due to the presence of just-in-time compilers.
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History of Java
The project Java was initiated in the year 1991 by James Gosling, which was originally called “Oak” named after the Oak tree, which stood in the entrance of James’s office. Then it was renamed as Green and after a long time it got the name ‘Java’. Its public implementation happened in the year of 1995 by Sun Microsoft.
After this it was made open source in the year 2006under the terms of GPL. Finally, on May 8th of 2007 the process of making it code free was accomplished. Java Classes in Chennai is of great opportunity for IT professionals.
Tools in need
There are certain specifications to be fulfilled for running Java in your system. As Java Training in Chennai is fetching more students it is indeed to have the specific hardware and software to work on Java. They are specified below:
- Pentium 200-MHzComputerwith64 MB of RAM
- Linux 7.1 or Windows xp/7/8 operating system
- Java JDK 8
- Microsoft Notepad
A program in Java is acluster of object, which communicate by calling upon each other’s method.Let us concentrate on the various components present in Java syntax:
Class- It is the blueprint, which describes the state of the object supported by it.
Object- They have various states along with different behaviors.
Methods- It is always been a behavior.
Instance variables- Every object has a unique set of it.
Every component present in Java requires names. It may be used for classes, methods and variables that are known as identifiers. There are certain basic things to be remembered:
- Identifier should begin with alphabet, underscore or currency character.
- They are case sensitive.
- The rest of the characters should be combination of characters.
- Keyword should not be used as identifier.
It is indeed necessary to modify methods, class and other components. The modifiers are classified into two:
Non-access modifier: abstract, final
Access modifier: public, default
There are various Java variables:
- Local Variables
- Instance Variables (Non-static Variables)
- Class Variables (Static Variables)
Arrays are used for the storage of multiple variables of similar type.
Java 5.0 consists of Enums, which restricts variable to have single predefined value form the given list. Enumsare used for the reduction of bugs in the code.
There are certain reserved words that cannot be used as variableor constant namely: abstract, assert, Boolean,break, byte, case, catch, char, class,continue,const,default, else, double, float, final, do, enum, extends, if, for, implements, goto, int, import, interface, instanceof, native, long, package, new, public, short, private, return,strictfp, synchronized, throw, switch, static, transient,volatile, void, try, throws.
Comments in Java
It supports both single and multi-line comments, which is similar to C and C++.
The specialty of Java is classes can be derived from classes.
It is the arrangement between objects for the method to communicate.It plays crucial role for the inheritance.
Java – objects & Classes
Java is object-oriented language which includes:
Classes present in Java
There are 3 classes present in Java:
A class can contain any of the following variable types.
- Local variables: These variables are defined inside methods, constructors or blocks.
- Instance variables: variables aredefined within a class and outside any method.
- Class variables: These are declared within a class, outside method, with static keyword.
How to Use Singleton Class?
Its work is to control the object creation, which in turn limits the number of objects to one. As there is singleton instance, its occurrence will be restricted to one per class. Join our Java Classes in Chennai and get more knowledge in it.
How to Create an Object
A class in Java administers the blueprints for any objects. The steps involved in the creation of object are:
- Declaration: A variable is declared with variable name and an object type.
- Instantiation: The ‘new’ keyword is usedfor the creation of object.
- Initialization: The ‘new’ keyword is pursuedby a call to a constructor.
The various operator available in Java are:
- Bitwise Operators– &(bitwise and), ~ (bitwise compliment), | (bitwise or), >> (right shift), << (left shift), ^ (bitwise XOR), >>> (zero fill right shift).
- Arithmetic Operators– + (Addition), * (Multiplication), % (Modulus), – (Subtraction), / (Division), ++ (Increment)
- Assignment Operators – =, *=, +=, %=, |=
- Logical Operators – || (logical or), && (logical and),! (logical not)
- Relational Operators– == (equal to), < (less than), != (not equal to), <= (less than or equal to)
- Misc Operators-Conditional Operator
There are over 3 billion devices, which run on Java script. Thus, joining Java Course in Chennai will be of great help for you to enter the IT sector. Few among them are listed below:
- Web based Applications such as amazon.in, etc.
- Enterprise based Applications like banking applications.
- Desktop based Applications like media player, acrobat reader, etc.
- Embedded System
- Smart Card
Types of Java Applications
Java Training in Chennai is the most predominant course preferred by students. There are four types of applications, which can be generated with the use of Java programming:
1) Web Application
An application that can be executed on the server side along with creation of dynamic page is known a web application. Servlet, Struts, JSF, Spring, etc. are some of the technologies which are used in the creation of web applications.
2) Standalone Application
Standalone applications also known as window-based or desktop applications are traditional software, which are indeed necessary to be installed on every machine. There are various examples for standalone application such as antivirus, Media player, etc. AWT and Swing are deployed in the creation of Java.
3) Enterprise application
An application that is assigned in nature, such as banking applications, etc. is called enterprise application. It has many benefits of load balancing, high-level security, and clustering. Enterprise Java Beans is deployed for the creation of enterprise applications.
4) Mobile application
An application that is created for mobile devices is known as mobile application. These days, Java ME and Android are used for the creation of various mobile applications.
The students with considerable amount of knowledge in Java Training have good openings in the market. Java platforms are classified into:
1) Java Standard Edition
Java SE is a Java programming platform that consists of Java programming APIs like java.net java.lang, java.io, java.math, java.util, java.sql, etc. It has basic topics such as OOPs, Reflection, Regex, Exception, String, Inner classes, I/O Stream, Networking, AWT, Multithreading, Swing, Collection, etc.
2) Java Enterprise Edition
J2EE is an enterprise platform that is primarily used for the development of enterprise and web applications. It is erected on top of the Java SE platform. It also has topics such as Servlet, Web Services, EJB, JSP, JPA, etc.
3) Java Micro Edition
JME is a micro platform that is used in order to develop various mobile applications.
It is used in order to develop affluent internet application, which makes use of light-weight user interface API.
Difference between JDK, JRE, and JVM
Java Virtual Machine is an abstract machine and is called virtual machine as its existence is not physical. Moreover, it is a blueprint, which provides runtime environment for the execution of Java bytecode. In addition, execution of programs written in other languages is also possible.
All the three JVM, JDK and JRE are platform reliant due to the composition of all the operating systems that are unique. JVMs is availability us not constrained to any one hardware or software. For further information, join FITA, the best Java Training Institute in Chennai.
The tasks performed by JVM are:
- Supply’s runtime environment
- Loading of code
- Verifying the code
- Execution of code
What is JVM
JVM is a specification in which working of Java Virtual Machine is specified. Moreover, the implementation provider is not dependent on the choice the algorithm whose implementation is provided by Oracle. FITA, is among the top Java Coaching Centers in Chennai.
JVM provides description for the following:
- Register set
- Fatal error reporting
- Memory area
- Class file format
- Garbage-collected heap
A variable is a container that possess the value when the java program is been executed. A variable is accredited with a datatype.
Variable is name given for memory location, which are classified into three types: instance, local, and static. Join our Core Java Training in Chennai and get the opportunity to enter the It sector.
There are two types of data types in java: primitive and non-primitive.
It is the fundamental unit of storage in any program.
- The value that is stored in a variable can be altered during the process of the program execution.
- A variable is just a name given to a memory location.
- In Java, every variable must be declared before bringing into use.
- Variable has always been a combination of vary + able.
Data Types in Java
Data types define the different size, values as well, which can be stored in the variable. It is classified into two data types in Java:
Primitive data types: The primitive data types consists of boolean, byte, double, short, int, char, long and float.
Non-primitive data types: This include Classes, Interfaces, along with Arrays.
Java Primitive Data Types
In Java language, basic data types are the building blocks of data manipulation. The following are the fundamental data types that are available in the Java language. Become smart by joining our Java Training in Adyar.
They are classified into 8 types of primitive data types:
- byte data type
- char data type
- short data type
- boolean data type
- float data type
- int data type
- long data type
- double data type
Boolean Data Type
The Boolean data type is used for the storage of only two possible values either true or false. This data type is used for tracking of true/false conditions in simple flags.
Byte Data Type
The byte datatype also belongs to primitive data type, which has an 8-bit signed two’s complement integer. The value-range of byte datatype lies between -128 to 127 with the minimum value -128 and the maximum value 127 with a default value as 0.
This is used in order to save memory in large arrays in which the memory savings is indeed necessary that saves space as a byte is 4 times smaller than integer. This can be used for the replacement of “int” data type.
Short Data Type
It is a 16-bit signed two’s complement integer who’s value-range lies amid -32,768 to 32,767 considering minimum value as -32,768 and maximum value as 32,767. The default value in short data type is also 0.
It is similar to byte data type with respect to memory saving. Moreover, it is 2 times smaller when compared with integer.
Int Data Type
This data type is a 32-bit signed two’s complement integer with value ranging between – 2,147,483,648 to 2,147,483,647. The minimum value is considered to be – 2,147,483,648 and maximum value as 2,147,483,647 with a default value as 0.
This is broadly used as default data type for the integral values except if there is no problem with respect to the memory.
Long Data Type
This is a 64-bit two’s complement integer and consist of value-ranging between -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807. Long datatype has minimum value as – 9,223,372,036,854,775,808 and with the maximum value as 9,223,372,036,854,775,807.
The default value is considered to be 0. This data type is deployed when there is need of range of values that is provided more than by int.
Float Data Type
This data type is single-precision 32-bit floating point with value range that is considered unlimited. It is favored to the usage of a float instead of using double if there is a need to save memory in large arrays of floating point numbers. This data type should never be used for the precise values like currency with a default value as 0.0F.
Double Data Type
This is a double-precision 64-bit IEEE 754 floating point with unlimited range of value. This data type is normally used for decimal values similar to float. The double data type should never be used for the precise values, like currency with a default value of 0.0d.
|Java If-else Statement
Java if statement is deployed to test the condition and checks boolean condition of true or false.
The types of if statement in java are:
· if statement
· if-else-if ladder
· if-else statement
· nested if statement
Java if Statement
It runs the if block if the condition is true.
//code to be executed
Java if-else Statement
The Java if-else statement executes the if block when the condition is true otherwise else block is executed.
//code if condition is true
//code if condition is false
Java Nested if statement
The nested if statement serve the if block within another if block. In this, the inner if block condition runs only when the outer if block condition is true.
Java Switch Statement
The Java switch statement executes only one statement from multiple conditions. The switch statement works with long, byte, short, int, enum types, String. In other words, the switch statement is deployed for testing the equality of variable against multiple values.
Loops available in Java
In the various programming languages available, loops are used in order to execute a set of instructions repeatedly when some of the conditions are true. They are classified into three types:
- while loop
- for loop
- do-while loop
Java for Loop
In Java, for loop is used for the iteration of a part of the program many times. If the number of iteration is steady, it is recommended for the usage of loop.
- Labeled For Loop
- Simple For Loop
- Enhanced For Loop
Java Simple For Loop
A simple for loop is same as C or C++. Initialization of variable, condition check and increment or decrement value can be done. It has four parts:
Initialization: It is the initial condition that is executed when the loop begins. Here, initialization of we can initialize the variable, or we can use an already initialized variable. It is an optional condition.
Condition: It is the next condition that is executed every time to test the condition of any loop and continues the execution process until the condition is false. It must return boolean value either true or false.
Statement: The statement of the loop is executed each time until the second condition is false.
Increment/Decrement: The variable value can be incremented or decremented, which is an optional condition.
Java for-each Loop
The for-each loop is used to traverse collection in java. And is easier to implement than simple for loop as there is no need to increment the value along with the use subscript notation. It works on elements basis and not on the index. We get you trained in Java Course for a bright future.
//code to be executed
Java Labeled For Loop
We can bear a name of each Java for loop. We can make use of label before the for loop. It is indeed useful if we have nested for loop, with its help we can break/continue specific for loop.
//code to be executed
Java Infinitive For Loop
If you use two semicolons ;; in the for loop, it will be infinitive for loop.
//code to be executed
Java While Loop
The Java while loop is used to iterate a part of the program several times. If the number of iteration is not fixed, it is recommended to use while loop.
//code to be executed
Java Infinitive While Loop
If you pass true in the while loop, it will be infinitive while loop.
//code to be executed
Java do-while Loop
The Java do-while loop is used to iterate a part of the program several times. If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use do-while loop.
The Java do-while loop is run at least once because condition is checked after loop body.
//code to be executed
Java Infinitive do-while Loop
If you pass true in \ do-while loop, it will be infinitive do-while loop.
//code to be executed
Java Break Statement
When a break statement is encountered within a loop, the loop is immediately terminated and program control resumes at the next statement following the loop.
The Java break is used in order to break loop or the switch statement. It breaks current flow of program at specified condition. In case of inner loop, it breaks the inner loop alone.
We can use Java break statement in all types of loops such as for loop, while loop and do-while loop.
Java Continue Statement
The continue statement is used in loop control structure when you need to jump to the next iteration of the loop immediately. It can be used with for loop or while loop.
The Java continue statement is used to continue the loop. It continues the current flow of the program and skips the remaining code at specified condition. In case of inner loop, it continues inner loop.
We can use Java continue statement in all the type of loops like for loop, while loop and do-while loop. For any further knowledge in Java enroll yourself into our J2EE Training in Chennai.
If you are interested in learning Java, then join our Java Training in Chennai.