How to exclude a property from an interface?

Question

Java

Typescript has a special type Omitthat is used like this:

interface MyInterface {
    A: string;
    B: string;
    C: string;
}

class MyClass implements Omit<MyInterface, 'C'> {
    public A: string = '';
    public B: string = '';
}

How to implement this in Java?

Answer 1

In Java, this is not allowed. Either the class implements the interface completely, or it does not conform to the given interface.
It would be correct to throw an "UnsupportedOperationException" or "NotImplementedException" exception in the implementation of the method, and indicate in the documentation for the method why this method is not implemented.
Another option is to change the interface, in one of the ways and depending on why you need to not implement one of the methods:

1. Split functionality into two interfaces
   
2. Describe the default method in the interface