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Build 2.139 · 05 Nov 2026, 10:27 UTC

    HackIndia
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    ← All skills
    OpenJDK

    Java

    Build a Java CLI recruiter project

    Build a small Java command-line app that reads data, uses clean classes, handles errors, and can be built by someone else from your public repo.

    For college builders in India who know basic coding and want an internship-ready Java project.

    Working8 lessonsAbout 34 min+100 XP
    Start lesson 1

    Your path

    Read it all on one page →
    1. 1Start hereJava project worth showing5 min
    2. 2Types and collections4 min
    3. 3Classes and interfaces5 min
    4. 4Generics and exceptions4 min
    5. 5Streams and lambdas4 min
    6. 6Files and JSON handling4 min
    7. 7Maven or Gradle basics4 min
    8. 8Submit your public repo4 min
    9. The check10 questions · 7 to pass
    10. OpenJDK
      Verify the Java skill+100 XP and +50 SHARP and a certificate, once the check and the task are done
    How you earn it
    OpenJDK
    Java
    +100 XP and +50 SHARP, on your profile with a certificate

    Both of these. Either order.

    Pass the check

    10 questions from the lessons. Get 7 right.

    Take the check
    A project that uses the skill

    Submit a Java project on HackIndia with a public repository. The repo must include a Maven or Gradle build, source code, sample data, and clear run instructions so another builder can build and run it.

    A public GitHub repository with your own commits, containing Java code. We check it when you hand it in.

    Sign in to keep track of your lessons and earn the skill.

    Leaderboard

    First tries only. Score, then time.

    Nobody is on it yet. Pass on your first try to take first place.