What is the purpose of access modifiers in Java?

6 months ago

2 minutes

Access modifiers in Java are used to control the access of classes, variables, methods, and other members. These modifiers include public, protected, private, and default (no modifier), each serving different purposes.

public: a public access modifier, indicating that the member can be accessed by any class.
protected: A protected access modifier indicates that the member can be accessed by other classes in the same package or by subclasses of that class.
Private: a private access modifier that indicates the member can only be accessed by other methods within the same class, and cannot be accessed by other classes.
Default (Without any modifiers): Default access modifier, it means the member can be accessed by other classes in the same package but cannot be accessed by classes in different packages.

By using different access modifiers, you can flexibly control the encapsulation and access permissions of a class, improving code security and maintainability.