I will teach Core Java programming from basics to advanced in 4 weeks, below is the 4 week curriculum.

Week 1 – Java Foundations

Class 1: Introduction & Setup

What is Java, where it is used

Installing JDK & IDE (IntelliJ / Eclipse)

Writing your first Java program (“Hello World”)

Java program structure (class, main method, compilation)

Class 2: Java Basics

Variables, Data Types, Operators

Control Statements (if-else, switch, loops)

Hands-on: Write a program to calculate factorial, reverse a number

Week 2 – Object-Oriented Programming (OOP)

Class 3: Core OOP Concepts

Classes, Objects, Methods,Constructors

Encapsulation & Access Modifiers (public, private, protected)

Hands-on: Create a Student class with properties & methods

Class 4: Inheritance & Polymorphism

Inheritance (extends, super keyword)

Method Overloading vs Overriding

Abstract Classes & Interfaces

Hands-on: Build a simple class hierarchy (Shape → Circle, Rectangle)

Week 3 – Collections & Exception Handling

Class 5: Java Collections Framework

Arrays vs Collections

List, Set, Map (ArrayList, HashSet, HashMap)

Iterators & for-each loop

Hands-on: Store and retrieve student records using HashMap

Class 6: Exception Handling & File I/O

Try-catch-finally

Checked vs Unchecked exceptions

Custom exceptions

Basic File Reading/Writing

Hands-on: Program that reads from a file & handles errors

Week 4 – Advanced Java

Class 7: Multithreading & Streams

Threads (Thread class, Runnable interface)

Synchronization basics

Java 8 Streams & Lambda expressions

Hands-on: Write a program using multiple threads (producer-consumer demo)

Class 8: Revision, Interview Preparation & Career Guidance

Revision of all topics covered

Tips for Java interviews (common questions on OOP, Collections, Multithreading)