Java acts both as an operating platform and as a language. There are three categories in this language core and advanced Java and J2EE Java. To run the programming server of Java language, J2EE platform is used. Since this language is in high demand, so a prospective employee will surely face question on this language. Answers to which should be given in a technical manner in order to show that you have taken pains to learn this language and that you do know this language well.

Topics Covered

Java Language Environment Object Oriented Platform Independent Automatic Memory Management Compiled / Interpreted approach Robust Secure Dynamic Linking MultiThreaded Built-in Networking Java Fundamentals Data types Operators Control Statements Arrays Enhanced for-loop Static import Auto boxing C-style formatted I/O Variable arguments Essentials of Object-Oriented Programming Object and Class Definition Using encapsulation to combine methods and data in a single class Inheritance and Polymorphism Writing Java Classes Encapsulation Polymorphism Inheritance OOP in Java Class Fundamentals Using Objects Constructor Garbage Collection Method Overloading Method Overriding Static Members Understanding Interface Using Interfaces class Packages Why packages Understanding Classpath Access modifiers and their Scope Exception Handling Importance of Exception Handling Exception Propagation Exception Types Using try and catch throw, throws, finally Writing User defined Exceptions I/O Operations in Java Byte Oriented Streams File Handling Readers and Writers Multithreaded Programming Introduction to Multi-Threading Understanding Threads and its States Java Threading Model Thread class and Runnable Interface Thread Priorities Thread Synchronization Inter thread Communication Preventing Deadlocks Network Programming Introduction to Networking InetAddress URL TCP Socket and ServerSocket UDP Socket Developing a Chat Application Java Util Package / Collections Framework Collection and Iterator Interface Enumeration List and ArrayList Vector Comparator Set Interface and SortedSet Hashtable Properties Generics Introduction to Generics Using Built-in Generics Collections Writing Simple Generic Class Bounded Generics Wild Card Generics Inner Classes Nested Top Level Classes Member Classes Local Classes Anonymous Classes Abstract Window Toolkit Graphics Color and Font AWT Components/Controls Event Handling and Layouts Swing Programming Introduction to Swing and MVC Architecture Light Weight Component Swing Hierarchy Atomic Components e.g. JButton, JList and more Intermediate Container e.g. JPanel, JSplitPane and more Top-Level Container e.g. JFrame and JApplet Swing Related Events