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  • Analysis of spell name lengths for the Magic Academy ✨

    JAVA 25 SELF
    Level 33, Lesson 0
    Analysis of spell name lengths for the Magic Academy ✨
    1
    Locked
  • Lazy Cat and His Dinner: A Simulation Without Side Effects 😼

    JAVA 25 SELF
    Level 33, Lesson 1
    Lazy Cat and His Dinner: A Simulation Without Side Effects 😼
    1
    Locked
  • Searching for a Rare Artifact in an Ancient Treasure Vault 💎

    JAVA 25 SELF
    Level 33, Lesson 1
    Searching for a Rare Artifact in an Ancient Treasure Vault 💎
    1
    Locked
  • Creating a Protected List of Rare Books in the Library 📚

    JAVA 25 SELF
    Level 33, Lesson 2
    Creating a Protected List of Rare Books in the Library 📚
    1
    Locked
  • Dynamic restaurant menu: how recipe changes affect the guest view 🍽️

    JAVA 25 SELF
    Level 33, Lesson 2
    Dynamic restaurant menu: how recipe changes affect the guest view 🍽️
    1
    Locked
  • Processing the first received package at the warehouse 📦

    JAVA 25 SELF
    Level 33, Lesson 3
    Processing the first received package at the warehouse 📦
    1
    Locked
  • Dividing tasks between teams at a strategic meeting 🎯

    JAVA 25 SELF
    Level 33, Lesson 3
    Dividing tasks between teams at a strategic meeting 🎯
    1
    Locked
  • Organizing the Library of Ancient Programming Languages 📜

    JAVA 25 SELF
    Level 33, Lesson 4
    Organizing the Library of Ancient Programming Languages 📜
    1
    Locked
  • Zoological Quest: Grouping Animals by Name Length 🦁🐱

    JAVA 25 SELF
    Level 33, Lesson 4
    Zoological Quest: Grouping Animals by Name Length 🦁🐱
    1
    Locked
  • Strict color palette 🎨

    JAVA 25 SELF
    Level 34, Lesson 0
    Strict color palette 🎨
    1
    Locked
  • Data protection: no empty entries or duplicates! 🛡️

    JAVA 25 SELF
    Level 34, Lesson 0
    Data protection: no empty entries or duplicates! 🛡️
    1
    Locked
  • Shopping cart: live view vs snapshot 🛒

    JAVA 25 SELF
    Level 34, Lesson 1
    Shopping cart: live view vs snapshot 🛒
    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