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Practice Java Coding

Improve your Java programming skills with our collection of 60+ interactive coding challenges. Track your progress and build coding confidence!

60+Challenges
3Difficulty Levels
InstantFeedback

Choose Your Level

🌱

Beginner Challenges

Perfect for those just starting with Java. Build confidence with simple problems.

25 challengesStart →
🔥

Intermediate Challenges

Take your skills to the next level with more complex problems.

20 challengesStart →
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Advanced Challenges

Challenge yourself with difficult problems that test your expertise.

15 challengesStart →

Featured Challenges

Try these popular challenges to get started

Reverse a String

Stringsbeginner
✓ 12,450 solved

Find Maximum in Array

Arraysbeginner
✓ 10,230 solved

Check Palindrome Number

Numbersbeginner
✓ 9,870 solved

Two Sum Problem

Arraysintermediate
✓ 8,540 solved

Binary Search Implementation

Algorithmsintermediate
✓ 7,320 solved

Merge Two Sorted Arrays

Arraysintermediate
✓ 6,890 solved
View All Challenges →

How It Works

1

Choose a Challenge

Select a challenge based on your skill level and the topic you want to practice.

2

Write Your Solution

Use our built-in code editor to write your Java solution. Syntax highlighting included!

3

Submit & Get Feedback

Submit your code and get instant feedback. See test cases pass or fail in real-time.

4

Track Progress

Your progress is saved locally. Come back anytime to continue where you left off.

Why Practice Here?

⚡

Instant Feedback

Know immediately if your solution is correct

📊

Progress Tracking

Track your solved problems and improvement

💡

Hints Available

Stuck? Get hints without seeing the full solution

📱

Works on Mobile

Practice coding even on your phone

Ready to Practice?

Start with beginner challenges and work your way up!

Start First Challenge