Java: static field in abstract class

Question

I just start out with an example, that explains it best:

public abstract class A{
    static String str;
}

public class B extends A{
    public B(){
                


        

Answer 1

I think one way to approach this is to use a singleton for class B and C to mimic static methods and fields. The can both extend abstract class A, but will have their own values of str..