Question

I have an

public interface DoIt {
    void dosomething (int i, double x);
    int dosomethingelse (String s);
}

some class that implement it is class_of_a etc…
and i want to add an new method in the interface lets say diditwork(int x);
How am i suppose to do that while avoiding the problems of recompiling or whatever problem that might be ? What would be the new hierarchy ?

Answer 1

Create a new interface and extend the old interface, something like:

interface DoIt2 extends DoIt
{
    // void doSomething(int i, double x);
    // int doSomethingelse(String s);
    void didItWork(int x);
}