1. Java Basics

2. Development Environment Setup

• Tools Required
  • JDK (Java Development Kit)Required for compiling Java code.
  • IDE (Integrated Development Environment)Recommended options include IntelliJ IDEA, Eclipse, NetBeans, and VS Code.

3. Java Syntax and Structure

• Basic Syntax
  • Java code must be enclosed in classes.
  • The main method serves as the entry point for execution.
• Data Types
  • Primitive types: int, float, double, char, boolean.
  • Variable declaration and initialization.

4. Control Structures

• OperatorsArithmetic, relational, and logical operators.
• Conditional Statementsif, else if, else, and switch statements.
• Loopsfor, while, and do-while loops.

5. Object-Oriented Programming (OOP)

• Classes and Objects
  • Classes serve as blueprints for creating objects.
  • Instance variables and methods.
• Inheritance
  • Extending classes to create subclasses.
  • Single inheritance in Java (no multiple inheritance).
• Polymorphism
  • Method overriding and overloading.
• Encapsulation
  • Using access modifiers (private, protected, public) to control access to class members.

6. Abstract Classes and Interfaces

• Abstract Classes
  • Cannot be instantiated; can contain abstract methods.
• Interfaces
  • Define a contract for classes to implement.
  • Support multiple inheritance.

7. Exception Handling

• Types of Errors
  • Compile-time errors, logical errors, and runtime errors.
• Try-Catch Blocks
  • Handling exceptions to prevent program crashes.
• Throwing Exceptions
  • Using throw and throws keywords to manage exceptions.

8. Collections Framework

• ArrayList
  • Dynamic array implementation that can grow in size.
  • Supports generics for type safety.
• Set
  • Collection of unique elements (e.g., HashSet).
• Map
  • Key-value pairs (e.g., HashMap).

9. Multithreading

• Threads
  • Allow concurrent execution of code.
  • Implementing Runnable or extending Thread class.
• Thread Management
  • Using start(), join(), and sleep() methods to control thread execution.