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    In UML diagrams, final variables in Java are represented with specific conventions to denote their immutability and other attributes. Here's how you can represent a final variable in UML:

    1. Visibility Modifier: Use + for public, - for private, or # for protected visibility.

    2. Static Modifier: If the variable is static, underline its name.

    3. Final Modifier: Represent final variables as read-only by adding {readOnly} as a property modifier.

    4. Naming Convention: Use ALL_CAPS for constants, following Java conventions.

    5. Initial Value: Include the initial value of the variable using = value.

    Example Representation

    For a Java variable:

    private static final int DAMAGE = 3;
    已复制!

    The UML representation would be:

    - DAMAGE : int = 3 {readOnly}
    已复制!

    • - indicates private visibility.

    • The name DAMAGE is underlined to denote it is static.

    • {readOnly} signifies that it is a final variable.

    Complete UML Example

    For a class with final variables:

    public class Game {
    private static final int DAMAGE = 3;
    public final String GAME_NAME = "Chess";
    }
    已复制!
    The “final” Keyword in Java - Baeldung

    Learn what the final keyword in Java means when applied to classes, methods, and variables.

    Baeldung
    How to use final keyword in Java?
    In Java, we can use final keyword with variables, methods, and classes. When the final keyword is used with a variable of primitive data types such as int, float, etc), the value of the variable cannot be changed. Example 1: Usage of final with primitive datatype Output:
    geeksforgeeks.org
    Baeldung中文网
    https://www.baeldung-cn.com/java-final
    Java中的final关键字详解 | Baeldung中文网
  1. GeeksForGeeks
    https://www.geeksforgeeks.org › java › final-variables-in-java翻译此结果

    final variables in Java - GeeksforGeeks

    2025年7月23日 · In Java, we can use final keyword with variables, methods, and classes. When the final keyword is used with a variable of primitive data types such as int, float, etc), the value of the variable …

    • In Java, we can use final keyword with …

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  2. Baeldung
    https://www.baeldung.com › java-final翻译此结果

    The “final” Keyword in Java - Baeldung

    While inheritance enables us to reuse existing code, sometimes we do need to set limitations on extensibility for various reasons; the finalkeyword allows us to do exactly that. In this tutorial, we’ll take a look at what the finalkeyword means for classes, methods, and variables.
    在baeldung.com上查看更多信息
    • 发布日期: 2018年3月27日
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    • Baeldung中文网
      https://www.baeldung-cn.com › java-final

      Java中的final关键字详解 | Baeldung中文网

      2025年6月14日 · 1. 概述 继承让我们能复用现有代码，但有时出于各种原因，我们需要 限制扩展性。 final 关键字正是为此而生。 本文将深入探讨 final 关键字在类、方法和变量上的具体含义和应用场景。

    • Wikipedia
      https://en.wikipedia.org › wiki › Final_(Java)翻译此结果

      final (Java) - Wikipedia

      final (Java) In the Java programming language, the final keyword is used in several contexts to define an entity that can only be assigned once. Once a final variable has been assigned, it is intended to …

    • CSDN博客
      https://blog.csdn.net › pan_junbiao › article › details

      Java中的final变量、final方法和final类 - CSDN博客

      2025年11月5日 · 本文深入解析Java中的final关键字，涵盖final变量、方法和类的使用，探讨其在提高程序性能、确保多线程安全和不可变类设计中的关键作用。 final关键字可用于变量声明，一旦该变量被 …

    • 菜鸟教程
      https://www.cainiaojc.com › java › java-final-keyword.html

      Java final 关键字 - Java教程 - 菜鸟教程

      Java final 关键字 在本教程中，我们将通过示例学习Java final变量，final方法和final类。 在Java中，final关键字用于表示常量。 它可以与变量，方法和类一起使用。 任何实体（变量，方法或类）一 …

    • javaguidepro.com
      https://javaguidepro.com › blog › final-java-variable

      深入理解 Java 中的 final 变量 — JavaGuidePro.com

      2025年9月19日 · 本文将深入探讨 final 变量的基础概念、使用方法、常见实践以及最佳实践，帮助读者全面掌握这一重要特性。 在 Java 中， final 变量是指一旦被赋值，就不能再重新赋值的变量。 可以将 …

    • W3School
      https://www.w3schools.com › java › ref_keyword_final.asp翻译此结果

      Java final Keyword - W3Schools

      The final keyword is useful when you want a variable to always store the same value, like PI (3.14159...). The final keyword is called a "modifier". You will learn more about these in the Java Modifiers …

    • Stack Overflow
      https://stackoverflow.com › questions翻译此结果

      How does the "final" keyword in Java work? (I can still modify an ...

      final is a reserved keyword in Java to restrict the user and it can be applied to member variables, methods, class and local variables. Final variables are often declared with the static keyword in Java …

      java - Difference between final and effectively final - Stack Overflow2014年1月4日
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    • GeeksForGeeks
      https://www.geeksforgeeks.org › java › final-keyword-in-java翻译此结果

      final Keyword in Java - GeeksforGeeks

      2025年12月3日 · The final keyword is a non-access modifier used to restrict modification. It applies to variables (value cannot change) methods (cannot be overridden) and classes (cannot be extended).

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