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Java [core] Programming Topics

Introduction to Java

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  • History of Java
  • Features of Java
  • Java Editions
  • JDK, JRE & JVM
  • Structure of Java Program

Data Types & Variables

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  • Primitive Data Types
  • Non-Primitive Data Types
  • Type Casting
  • Variables and Constants

Operators & Control Statements

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  • Arithmetic & Logical Operators
  • if-else & switch
  • for, while, do-while loops
  • break & continue

Classes & Objects

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  • Class & Object Basics
  • Constructor and Overloading
  • this Keyword
  • Static Members

Inheritance & Polymorphism

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  • Types of Inheritance
  • Method Overriding
  • super Keyword
  • Runtime Polymorphism

Abstraction & Encapsulation

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  • Abstract Classes
  • Interfaces
  • Encapsulation & Getters/Setters

Arrays & Strings

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  • 1D and 2D Arrays
  • String Class & Methods
  • StringBuffer vs StringBuilder

Exception Handling

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  • try, catch, finally
  • throw & throws
  • Custom Exceptions

Packages & Access Modifiers

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  • Built-in & User-defined Packages
  • Importing Packages
  • Access Specifiers (public, private, etc.)

Miscellaneous Topics

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  • Wrapper Classes
  • Command-line Arguments
  • Java API Documentation
  • Garbage Collection

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