I've got a main class and two inherited class:

public class mother{
    public String Melement;
}

and

public class boy extends mother {
    public String Belement;
}

and

public class girl extends mother{
    public String Gelement;
}

So I could have an object A like boy A = new boy(); and an object B like girl B = new girl();

And I would like to use a method with these objects, but it doesn't work

This is what I tried:

public void mymethod(mother MyObject) {
    if (MyObject instanceof boy){
        String A = MyObject.Melement;
        String B = MyObject.Belement;
    }

    if (MyObject instanceof girl){
        String A = MyObject.Melement;
        String B = MyObject.Gelement;
    }
}

I understand that it's not working because Myobject is of type mother so I could access only Melement But I would like my method to accept the both type of objects boy and girl

Is it possible to do it? How?

CodePudding user response：

Although it the check of instance of does work, you still need to cast it to a Boy class in order to work. Simply do String B = ( (boy) MyObject ).Belement;