Question

I have class Dad with subclass Son. I’d like to create a subclass of Dad and a subclass of Son that overrides a method of Dad.

What would be the best way of doing this without repeating code? I can not modify Dad and Son.

Given…

public class Dad {

public void doSomething() {}

}

public class Son extends Dad {

}

…I’d like to create…

public class DadSubclass extends Dad {

@Overrides
public void doSomething() {        
    // My code 
}

}

public class SonSubclass extends Son {

@Overrides
public void doSomething() { 
    // My code 
}

}

…without repeating // My code.

The obvious solution would be to create a helper class and call it for both, but this is problematic if I want to call protected methods, and I’m not allowed to create the subclasses with the same package.

Is there a better solution?

Answer 1

Create a common helper class and call it.