An interface with different method parameters

Question

I want to declare an interface be use with several classes
this classes have method with different parameters

interface:

public interface Operation {

public int Add();

}

class A:

public class CLASSA implement Operation{

     public int Add(int id,String name);

}

class B:

public class CLASSB implement Operation{

     public int Add(String name);

}

how to impelement of this interface?

Answer 1

you could make an operand-object

public interface Operation {

public int Add(Operand o);

}

or

public interface Operation {

 public int Add(Operand... o);

}

Answer 2

A few points worth mentioning regarding the other answers:

• Having and interface with multiple function implementation (one for each set of arguments) violates the interface segregation principle.
• Making the class ignore the unused arguments violates the Liskov substitution principle.

My suggestion would be to implement something like the Command pattern. To decouple the command implementation from its implementations is precisely its intent.