Core Java

1. Introduction to Java

• What is Java?
  • Overview and features
• Setting Up Java
  • Installing JDK and setting up an IDE (Eclipse, IntelliJ IDEA, etc.)
• First Java Program
  • Writing and running a basic “Hello, World!” application

2. Java Basics

• Syntax and Structure
  • Basic syntax, comments, and conventions
• Data Types
  • Primitive types (int, float, char, etc.)
• Variables
  • Declaration, initialization, and scope
• Operators
  • Arithmetic, relational, logical, and bitwise operators

3. Control Flow Statements

• Conditional Statements
  • if, else if, else, and switch
• Loops
  • for, while, and do-while loops
• Control Flow Modifiers
  • break, continue, and return

4. Functions and Methods

• Defining Methods
  • Syntax, parameters, and return types
• Method Overloading
  • Creating methods with the same name but different parameters
• Recursion
  • Writing recursive methods

5. Object-Oriented Programming (OOP)

• Classes and Objects
  • Defining classes and creating objects
• Constructors
  • Creating and using constructors
• Inheritance
  • Extending classes and method overriding
• Polymorphism
  • Method overriding and interfaces
• Encapsulation
  • Private fields and getter/setter methods
• Abstraction
  • Abstract classes and methods

6. Collections Framework

• Introduction to Collections
  • Overview of the Java Collections Framework
• Lists
  • ArrayList, LinkedList
• Sets
  • HashSet, TreeSet
• Maps
  • HashMap, TreeMap
• Iterators
  • Using iterators to traverse collections

7. Exception Handling

• Introduction to Exceptions
  • Understanding exceptions and errors
• Try-Catch Block
  • Handling exceptions with try, catch, and finally
• Throwing Exceptions
  • Using throw and throws
• Custom Exceptions
  • Creating and using custom exception classes

8. File I/O

• Reading from Files
  • Using FileReader and BufferedReader
• Writing to Files
  • Using FileWriter and BufferedWriter
• Serialization
  • Serializing and deserializing objects

9. Java Basics of Multithreading

• Introduction to Threads
  • Creating and running threads
• Thread Lifecycle
  • Understanding thread states and transitions
• Synchronization
  • Using synchronization to manage thread access to resources
• Concurrency Utilities
  • Using ExecutorService and other concurrency utilities

10. Java Standard Library

• String Handling
  • String manipulation and methods
• Utility Classes
  • java.util classes such as Date, Calendar, Random
• Regular Expressions
  • Using regex for pattern matching