Re: Problems with inheritance!
"nullstring" <leerstring@gmail.com> wrote in message
news:1167746693.338850.294360@48g2000cwx.googlegroups.com...
Ok!
But let's say the methods:
- public void meth1();
- public void meth2();
are all the same, independent on the derivated subclass!
only the method:
- public void meth3();
variates from subclass to subclass....
When I use an Interface, I have to write duplicated code, havent't I?
I know (and read everytime) about "prefer interfaces to abstract
classes", but how can this correlate with "don't write redundant code"
?
public abstract class SuperClass {
public void methodWhichIsTheSameForAllClasses() {
/*Some code, not duplicated anywhere.*/
}
public abstract void
methodWhichIsPresentInAllClassesButWhoseImplementationDiffers();
}
public class Subclass1 extends SuperClass {
public void
methodWhichIsPresentInAllClassesButWhoseImplementationDiffers() {
/*Subclass1 implementation, not duplicated anywhere.*/
}
public void methodOnlyPresentInSubclass1() {
/*Some code, not duplicated anywhere.*/
}
}
public class Subclass2 extends SuperClass {
public void
methodWhichIsPresentInAllClassesButWhoseImplementationDiffers() {
/*Subclass2 implementation, not duplicated anywhere.*/
}
public void methodOnlyPresentInSubclass2() {
/*Some code, not duplicated anywhere.*/
}
}
- Oliver