What is the difference between public, private and protected access modifiers in java?
n Java, access modifiers are keywords that define the scope or visibility of classes, methods, and fields in a program. There are four access modifiers in Java:
protected, and package-private (default).
Here’s a brief explanation of each:
|Same class only
|Same package and subclasses
|Same package only
1. Public: Members (classes, methods, fields) marked as
public are accessible from any other class.
There are no restrictions on accessing public members.
2. Private: Members marked as
private are only accessible within the same class.
They are not visible or accessible from any other class.
3. Protected: Members marked as
protected are accessible within the same package and by subclasses, regardless of the package they are in.
It provides a level of access between
4. Default (Package-Private): If no access modifier is specified (also known as package-private), the default access level is used.
Members with default access are accessible only within the same package.
It’s important to choose the appropriate access level based on the design of your classes and the desired encapsulation. Using access modifiers helps in achieving encapsulation, which is a fundamental principle in object-oriented programming.