What are access modifiers in Java?

The four types access modifiers in Java are as follows:

1. private
2. default
3. protected
4. public

private indicates that The access level of a private modifier is only within the class.

default indicates that The access level of a default modifier is only within the package.

protected indicates that The access level of a protected modifier is within the package and outside the package through child class.

public indicates that The access level of a public modifier is everywhere.