Your programming foundation starts here

Learn Java.
Build confidence.

From your first Hello World to object-oriented programming, collections, and concurrency. Follow 50 focused lessons with explanations and code examples in English and Tamil.

Java அடிப்படையிலிருந்து படிப்படியாகக் கற்றுக்கொள்ளலாம்.

Beginner friendlyEnglish + தமிழ்Self-pacedFree

HelloWorld.java

public class HelloWorld {
  public static void main(String[] args) {
    System.out.println("Vanakkam, developer!");
  }
}

› Vanakkam, developer!

50Topics in each language

6Structured sections

2Languages to learn in

Your paceNo deadlines. Keep exploring.

What you’ll take away

A solid foundation. A practical next step.

Read and write Java programs with confidence.
Use variables, conditions, loops, and arrays.
Organize code with reusable methods.
Understand classes, objects, and inheritance.
Work with collections and handle exceptions.
Explore threads, lambdas, and file handling.

The curriculum

One concept at a time.

Follow the lessons in order, or return to a topic whenever you need it. Choose English or தமிழ் beside each lesson.

01Start with the foundations12 lessons · Understand Java, set up your environment, and work with values and expressions.⌄

02Make decisions. Repeat actions.6 lessons · Build logic with conditions, loops, and arrays.⌄

03Write reusable code5 lessons · Organize your programs with methods, scope, overloading, and recursion.⌄

04Think in objects14 lessons · Explore classes, encapsulation, inheritance, interfaces, and object-oriented design.⌄

05Work with data8 lessons · Read input, handle dates, and choose the right collection.⌄

06Go beyond the basics5 lessons · Handle exceptions, patterns, threads, lambda expressions, and files.⌄

46Exceptions – Try…CatchEnglish ↗தமிழ் ↗
47Regular ExpressionsEnglish ↗தமிழ் ↗
48ThreadsEnglish ↗தமிழ் ↗
49Lambda ExpressionsEnglish ↗தமிழ் ↗
50FilesEnglish ↗தமிழ் ↗

Make the examples your own.

Run the code on your computer with a JDK and your preferred editor. Change a value, try another condition, and notice what happens. Each lesson now includes a complete runnable Java example, a live Java editor, and a practice task with an answer. Some original illustrations are still being migrated.

A few things to know.

Do I need programming experience?

No. Begin with the introduction and setup lessons, then work through the foundations in order.

What do I need to follow along?

A computer with a Java Development Kit (JDK) and a code editor. The Getting Started lesson walks through setup.

Can I switch between English and Tamil?

Yes. Every topic in this curriculum has an English and Tamil reading link.

Does this course include a certificate?

This free course includes reading lessons and interactive Java practice. Certificates and progress tracking are not currently enabled.

Learn Java.Build confidence.

A solid foundation. A practical next step.

One concept at a time.

Make the examples your own.

A few things to know.

Learn Java.
Build confidence.