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    In Java, access modifiers define the visibility and accessibility of classes, interfaces, methods, and variables. They are crucial for encapsulation and controlling how different parts of a program interact.

    Java provides four main access modifiers:

    1. private

    • Accessible only within the same class.

    • Not applicable to top-level classes or interfaces.

    • Commonly used to hide internal details and enforce encapsulation.

    class Person {
    private String name;
    public void setName(String name) { this.name = name; }
    public String getName() { return name; }
    }
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    2. Default (Package-Private)

    • No keyword is used.

    • Accessible only within the same package.

    • Often used for package-level utilities.

    class Car {
    String model; // default access
    }
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    3. protected

    • Accessible within the same package and in subclasses (even if in different packages).

    • Useful in inheritance-based designs.

    class Vehicle {
    protected int speed;
    }
    class Bike extends Vehicle {
    void setSpeed(int s) { speed = s; }
    }
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    4. public

    • Accessible from anywhere in the program.

    • Used for APIs, service classes, and widely shared utilities.

    Java OOP - Exploring the Differences Betwe…

    This article will demonstrate how do the access modifiers behave in an inheritance structu…

    Medium
    What is the difference between access modifier and access specifier?
    "access modifier" is the official term for private, protected and public used in the Java language specification. "access specifier" is used synonymously in the Java API doc, but this is the first time I've noticed that. It's probably better to stick with the JLS term. Sign up to request clarification or add additional context in comments.
    stackoverflow.com
    W3School
    https://www.w3schools.com/java/java_modifiers.asp
    Java Modifiers - W3Schools
  1. GeeksForGeeks
    https://www.geeksforgeeks.org › java › access...この結果を翻訳する

    Access Modifiers in Java - GeeksforGeeks

    2025年11月22日 · In Java, access modifiers are essential tools that define how the members of a class, like variables, methods, and even the class itself, can be accessed from other parts of our program.

    • Java Inheritance is a fundamental concept in OOP (Object-Oriented Programming). It …

    • In Java, access modifiers are essential tools that define how the members of a …

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  2. Stack Overflow
    https://stackoverflow.com › questionsこの結果を翻訳する

    java - What is the difference between access specifiers and access ...

    2010年2月10日 · "access modifier" is the official term for private, protected and public used in the Java language specification. "access specifier" is used synonymously in the Java API doc, but this is the …

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    • Medium
      https://medium.com › @seno.aji › java-oop-exploring...この結果を翻訳する

      Java OOP - Exploring the Differences Between Access Modifiers

      This article will demonstrate how do the access modifiers behave in an inheritance structure in a case where the parent and child class are in the same package and different package.

    • W3School
      https://www.w3schools.com › java › java_modifiers.aspこの結果を翻訳する

      Java Modifiers - W3Schools

      The public keyword is an access modifier, meaning that it is used to set the access level for classes, attributes, methods and constructors. We divide modifiers into two groups:

      コード サンプル

      // An example to demonstrate the differences between static and public methods
      publicclass Main
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    • Baeldung
      https://www.baeldung.com › java-acces…この結果を翻訳する

      Access Modifiers in Java - Baeldung

      2024年7月23日 · Simply put, there are four access modifiers: public, private, protected, and default (no keyword). Before we begin, please note that a top-level …

    • oracle.com
      https://docs.oracle.com › javase › tutorial › java › ...この結果を翻訳する

      Controlling Access to Members of a Class (The Java™ Tutorials ...

      For members, there are two additional access modifiers: private and protected. The private modifier specifies that the member can only be accessed in its own class.

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    • TutorialsPoint
      https://www.tutorialspoint.com › java › java_access...この結果を翻訳する

      Java - Access Modifiers - Online Tutorials Library

      Java access modifiers are used to specify the scope of the variables, data members, methods, classes, or constructors. These help to restrict and secure the access (or, level of access) of the data.

    • GeeksForGeeks
      https://www.geeksforgeeks.org › java › public-vs...この結果を翻訳する

      Public vs Protected vs Package vs Private Access Modifier in Java

      2025年7月23日 · So access modifiers are used to set the accessibility of classes, methods, and other members. Modifier 1: Public Access Modifiers If a class is declared as public then we can access that …

    • WsCube Tech
      https://www.wscubetech.com › ... › java › access-modifiersこの結果を翻訳する

      Java Access Modifiers: All Types With Examples & Uses

      Whether you're building a small utility or a large enterprise application, applying the right Java access modifiers improves maintainability and prevents accidental misuse of code. Let’s learn all types of …

    • Stack Overflow
      https://stackoverflow.com › questionsこの結果を翻訳する

      What is the difference between public, protected, …

      2008年10月19日 · This image will make you understand easily about the basic differences between public, private, protected and default access modifiers. The …

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