Java Access modifiers

In Java, access modifiers play a crucial role in determining who can access and modify classes, attributes, and methods. They provide a level of encapsulation and security, allowing us to design robust and maintainable code.

Exploring Each Access Modifier:

Public

• Public access modifier allows unrestricted access to classes, attributes, and methods from any other class.
• It's like throwing a grand party – everyone is invited, and anyone can join in!

   public class MyClass {
     public int myPublicAttribute;
     public void myPublicMethod() {
         // Method code
     }
   }

Private

• Private access modifier restricts access to classes, attributes, and methods within the same class.
• It's like having a secret hideout – only members of the club can access it!

   public class MyClass {
     private int myPrivateAttribute;
     private void myPrivateMethod() {
         // Method code
     }
   }

Protected

• Protected access modifier allows access within the same package or by subclasses, even if they are in a different package.
• It's like having a VIP section – only special guests (subclasses) and insiders (same package) can enter!

   public class MyClass {
     protected int myProtectedAttribute;
     protected void myProtectedMethod() {
         // Method code
     }
   }

Default (Package-Private)

• Default access modifier (also known as package-private) restricts access to classes, attributes, and methods within the same package.
• It's like having a neighborhood block party – only residents of the same neighborhood (package) are invited!

  class MyClass {
    int myDefaultAttribute;
    void myDefaultMethod() {
        // Method code
    }
  }

Comparing Access Modifiers:

Modifier	Visibility	Example
Public	Accessible from anywhere	public class MyClass { ... }
Private	Accessible only within the same class	private int myPrivateAttribute;
Protected	Accessible within the same package or by subclasses	protected void myProtectedMethod() { ... }
Default	Accessible within the same package	class MyClass { ... }

Understanding Java access modifiers is essential for creating well-structured and secure code. By mastering these modifiers, you can control the visibility and accessibility of classes, attributes, and methods, ensuring the integrity and maintainability of your Java programs.