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  • Game configuration: locking release settings 🎮

    JAVA 25 SELF
    Level 34, Lesson 1
    Game configuration: locking release settings 🎮
    1
    Locked
  • Protecting the banned words list 🚫

    JAVA 25 SELF
    Level 34, Lesson 2
    Protecting the banned words list 🚫
    1
    Locked
  • Real-time event log 📈

    JAVA 25 SELF
    Level 34, Lesson 2
    Real-time event log 📈
    1
    Locked
  • Animal inventory: live list or static snapshot? 🐾

    JAVA 25 SELF
    Level 34, Lesson 3
    Animal inventory: live list or static snapshot? 🐾
    1
    Locked
  • Playlists: the set is immutable, but songs inside can change 🎶

    JAVA 25 SELF
    Level 34, Lesson 3
    Playlists: the set is immutable, but songs inside can change 🎶
    1
    Locked
  • Smart task dispatcher: check for emptiness before working 🤖

    JAVA 25 SELF
    Level 34, Lesson 4
    Smart task dispatcher: check for emptiness before working 🤖
    1
    Locked
  • Algorithm of steps: forward and reverse control 🔄

    JAVA 25 SELF
    Level 34, Lesson 4
    Algorithm of steps: forward and reverse control 🔄
    1
    Locked
  • Where is my secret diary? 🕵️‍♀️

    JAVA 25 SELF
    Level 35, Lesson 0
    Where is my secret diary? 🕵️‍♀️
    1
    Locked
  • How big is your game save? 💾

    JAVA 25 SELF
    Level 35, Lesson 0
    How big is your game save? 💾
    1
    Locked
  • Where are the treasures? Checking the game assets directory 🎮

    JAVA 25 SELF
    Level 35, Lesson 1
    Where are the treasures? Checking the game assets directory 🎮
    1
    Locked
  • Building the project: full path to the "main" file 🏗️

    JAVA 25 SELF
    Level 35, Lesson 1
    Building the project: full path to the "main" file 🏗️
    1
    Locked
  • How much space does your "secret" document take? 📜

    JAVA 25 SELF
    Level 35, Lesson 2
    How much space does your "secret" document take? 📜
    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