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  • Managing city uniqueness and ranking 🏙️

    JAVA 25 SELF
    Level 29, Lesson 2
    Managing city uniqueness and ranking 🏙️
    1
    Locked
  • Sorting the attendees list by age at an event 🧑‍🎓

    JAVA 25 SELF
    Level 29, Lesson 3
    Sorting the attendees list by age at an event 🧑‍🎓
    1
    Locked
  • Ordering participants by name length for badges 🏷️

    JAVA 25 SELF
    Level 29, Lesson 3
    Ordering participants by name length for badges 🏷️
    1
    Locked
  • Tracking an animal's appearances in the forest 🌲🐾

    JAVA 25 SELF
    Level 29, Lesson 4
    Tracking an animal's appearances in the forest 🌲🐾
    1
    Locked
  • Match Results Analysis in the Game League 🎮📊

    JAVA 25 SELF
    Level 29, Lesson 4
    Match Results Analysis in the Game League 🎮📊
    1
    Locked
  • Tracking Game Progress 🎮

    JAVA 25 SELF
    Level 30, Lesson 0
    Tracking Game Progress 🎮
    1
    Locked
  • Product Cataloging for an Online Store 🏷️

    JAVA 25 SELF
    Level 30, Lesson 0
    Product Cataloging for an Online Store 🏷️
    1
    Locked
  • Inventory in the Magic Shop 🍎

    JAVA 25 SELF
    Level 30, Lesson 1
    Inventory in the Magic Shop 🍎
    1
    Locked
  • Sensor Monitoring in the Laboratory 🧪

    JAVA 25 SELF
    Level 30, Lesson 1
    Sensor Monitoring in the Laboratory 🧪
    1
    Locked
  • Managing the Queue for an Exclusive Party 🎉

    JAVA 25 SELF
    Level 30, Lesson 2
    Managing the Queue for an Exclusive Party 🎉
    1
    Locked
  • Top-4 Unique Sales Metrics 💰

    JAVA 25 SELF
    Level 30, Lesson 2
    Top-4 Unique Sales Metrics 💰
    1
    Locked
  • Call Students to the Board 👩‍🏫

    JAVA 25 SELF
    Level 30, Lesson 3
    Call Students to the Board 👩‍🏫
    1
    Locked
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CodeGym CodeGym is an online course for learning Java programming from scratch. This course is a perfect way to master Java for beginners. It contains 1200+ tasks with instant verification and an essential scope of Java fundamentals theory. To help you succeed in education, we’ve implemented a set of motivational features: quizzes, coding projects, content about efficient learning, and a Java developer’s career.
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Programmers Are Made, Not Born © 2026 CodeGym