Java Tutorial

1. Introduction to Java (Beginner Level)

Overview of Java

  • What is Java, its history, and why it's popular?

Setting Up the Development Environment

  • Install JDK (Java Development Kit) and IDE (IntelliJ IDEA, Eclipse, or VSCode)

Hello World Program

  • Write your first Java program

Basic Syntax and Structure

  • Classes and Methods
  • Comments
  • Variables and Data Types
  • Basic I/O (Input and Output)
  • Arithmetic operations
  • String handling

2. Control Structures (Beginner Level)

Conditionals

  • if, else, switch

Loops

  • for, while, do-while
  • Break and Continue Statements
  • Nested Loops

3. Object-Oriented Programming (OOP) Concepts (Intermediate Level)

Classes and Objects

  • Understanding the basics of objects and how to create them

Methods

  • Method declaration, return types, method overloading

Encapsulation

  • Using private fields and public getter/setter methods

Inheritance

  • Extending classes, method overriding

Polymorphism

  • Method overloading and method overriding

Abstraction

  • Abstract classes, abstract methods, and interfaces

4. Advanced Object-Oriented Concepts

Interfaces and Abstract Classes

  • Differences and use cases

Composition over Inheritance

  • Benefits of composition in OOP

Inner Classes

  • Static inner classes, anonymous classes, and local inner classes

Singleton Pattern

  • How to implement a Singleton class

5. Collections Framework (Intermediate Level)

Lists

  • ArrayList, LinkedList

Sets

  • HashSet, TreeSet

Maps

  • HashMap, TreeMap, LinkedHashMap

Queues

  • LinkedList, PriorityQueue

Iterator

  • Using iterator for traversing collections

Generic Collections

  • How to create and use generics in Java

6. Exception Handling (Intermediate Level)

Try, Catch, Finally Blocks

  • How to handle exceptions in Java

Throw and Throws

  • Creating Custom Exceptions

Checked vs Unchecked Exceptions

  • Understanding the difference

7. File I/O and Serialization (Intermediate Level)

Reading/Writing Files

  • Using FileReader, BufferedReader, FileWriter, BufferedWriter

Serialization

  • How to serialize and deserialize objects in Java

8. Concurrency and Multithreading (Advanced Level)

Thread Basics

  • Creating and starting threads

Runnable Interface

  • Using the Runnable interface for thread execution

9. Java Streams API and Lambda Expressions (Intermediate to Advanced Level)

Lambda Expressions

  • Functional interfaces, syntax, use cases

Streams

  • Stream creation, filtering, mapping, collecting, reducing

10. Design Patterns (Advanced Level)

Creational Patterns

  • Singleton, Factory, Builder, Prototype

Structural Patterns

  • Adapter, Composite, Decorator, Proxy

11. Java 8+ Features (Advanced Level)

Date and Time API

  • LocalDate, LocalTime, LocalDateTime, ZonedDateTime

Optional Class

  • Avoid null using Optional

12. Unit Testing in Java (Advanced Level)

JUnit Basics

  • Writing test cases with JUnit 5

13. Advanced Java Topics

JVM Internals

  • How the JVM works, garbage collection, memory management

JDBC

  • Connect Java applications to databases

14. Project Development and Deployment (Final Stage)

Building a Full Java Application

  • Design and develop a full application

Deployment

  • Learn how to deploy Java applications to a server or cloud

15. Continuous Learning

Stay Updated

  • Check out Java 16, Java 17, etc.
  • Contribute to open-source Java projects