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Master Java. Crack DSA.
Level Up Your Coding Skills.

The ultimate platform for Java developers. Practice LeetCode-style problems, master Data Structures & Algorithms, and prepare for your dream tech job.

Solution.java
class Solution {
  public void masterJava() {
    String platform = "CodexJava";
    while (!isExpert) {
      code.practice(platform);
      skills.levelUp();
    }
  }
}

Why CodexJava?

We are building a dedicated ecosystem for Java enthusiasts. Whether you're a beginner starting your first "Hello World" or an experienced developer preparing for FAANG interviews, CodexJava provides the structure, content, and practice environment you need.

  • Curated Java learning paths from basics to advanced
  • Real-world system design case studies
  • Interactive coding environment designed for focus

Interactive

Run Java code directly in your browser with our IDE.

Performance

Learn to write optimized, efficient algorithms.

Everything you need to excel

A comprehensive suite of tools designed to transform you into a top-tier developer.

Structured Courses

Step-by-step modules covering Core Java, Collections, Multithreading, and Spring Boot.

DSA Solutions

Hundreds of LeetCode-style problems with detailed Java solutions and complexity analysis.

Mock Interviews

Practice with AI-driven interview simulations or peer-to-peer mock sessions.

Coding Challenges

Weekly contests to test your skills against other developers in the community.

Java Roadmap

A clear, visual path from beginner to expert tailored for 2025 market needs.

System Design

Learn how to architect scalable applications with deep dives into real-world systems.

Early Access

Why join the waitlist?

Be among the first to experience the future of Java learning. Early adopters get special perks that won't be available later.

  • Priority access to the beta release
  • Exclusive 'Founding Member' badge on your profile
  • Locked-in early bird pricing for premium features
  • Direct influence on the product roadmap
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