Java interface design
- by Nayn
Hi,
I had an interface initially as below.
public interface testMe {
public Set<String> doSomething();
}
public class A implements testMe {
public Set<String> doSomething() {
return // Set<String>
}
}
I had similar classes implementing testMe. Now I have to add one more class which returns Set<Some Object>
public class X implements testMe() {
public Set<Some OBject> doSomething() {
}
}
How could i add this mehtod in the interface without breaking existing classes?
Thanks
Nayn
