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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.

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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

VIP Access

Reserved for you

Waitlist spots filling fast

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