Core Java

Java Basics : Introduction to Java Environment Set up Introduction To JVM Garage Collection Structure of Program Data Types Access Specifiers/Modifiers Object Oriented Concepts : Basic Oops Concept Object and Class Different ways to create an object Inheritance Encapsulation Polymorphism Abstarction Method Overriding Method Overloading Association,Composition & Aggregation Static Keyword Final Keyword super keyword Abstract Class Interface Immutable Class Java String : String Class String Buffer Class String Builder Class String vs String Buffer vs String Builder Exception Handling : Exception Handling Introduction Differences Between Exception and Error Checked Exception and Unchecked Exception try ,catch & finally in Java User Defined Exceptions in Java Final vs finally vs finalize() Return statement in try catch blocks  Return statement in finally block  Throw keyword in java  Throw vs throws  Multiple catch blocks in java Try block without catch block Different ways to print Exception message

Wrapper classes Object Class : Collections : List set Map Inner Classes