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Welcome to Java

Java is a programming language and a platform. Java is a high level, robust, secured and object-oriented programming language. Platform: Any hardware or software environment in which a program runs, is known as a platform. Since Java has its own runtime environment (JRE) and API, it is called platform.

Why Java ?

Object-Oriented

Architecture neutral

Interpreted

Dynamic

Basics of Java

  • Java - What, Where and Why?
  • History and Features of Java
  • Internals of Java Program
  • Difference between JDK,JRE and JVM
  • Internal Details of JVM
  • Variable and Data Type
  • Unicode System
  • Naming Convention

OOPS Conecpts

  • Advantage of OOPs
  • Object and Class
  • Method Overloading
  • Constructor
  • static variable, method and block
  • this keyword
  • Inheritance (IS-A)
  • Aggregation and Composition(HAS-A)
  • Method Overriding
  • Covariant Return Type
  • super keyword
  • Instance Initializer block
  • final keyword
  • Runtime Polymorphism
  • static and Dynamic binding
  • Abstract class and Interface
  • Downcasting with instanceof operator
  • Package and Access Modifiers
  • Encapsulation
  • Object class
  • Object Cloning
  • Java Array
  • Call By Value and Call By Reference
  • strictfp keyword
  • Creating API Document

String Handling

  • String : What and Why?
  • Immutable String
  • String Comparison
  • String Concatenation
  • Substring
  • Methods of String class
  • StringBuffer class
  • StringBuilder class
  • Creating Immutable class
  • toString method
  • StringTokenizer class

Exception Handling

  • Exception Handling : What and Why?
  • try and catch block
  • Multiple catch block
  • Nested try
  • finally block
  • throw keyword
  • Exception Propagation
  • throws keyword
  • Exception Handling with Method Overriding
  • Custom Exception

Nested Classes

  • Nested Class : What and Why?
  • Member Inner class
  • Annonymous Inner class
  • Local Inner class
  • static nested class
  • Nested Interface

Multithreading

  • Multithreading : What and Why?
  • Life Cycle of a Thread
  • Creating Thread
  • Thread Schedular
  • Sleeping a thread
  • Joining a thread
  • Thread Priority
  • Daemon Thread
  • Thread Pooling
  • Thread Group
  • ShutdownHook
  • Performing multiple task by multiple thread
  • Garbage Collection
  • Runnable class

Synchronization

  • Synchronization : What and Why?
  • synchronized method
  • synchronized block
  • static synchronization
  • Deadlock
  • Inter-thread Communication
  • Interrupting Thread
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