Preventing Inheritance for Members

We can mark classes and methods with the final keyword to prevent them from being inherited.

Prevent Class Inheritance

Most of the classes in the java.lang package are defined as final so that they can not be inherited. Here is the definition of the String class :

public final class String{
 //some methods omitted for readability's sake
}

Prevent Method Inheritance

We can mark the method with the final keyword to prevent it from being inherited.