调用hashCode的Object实现

Question

我有这样的层次结构:

public class A {
    public abstract int hashCode();
}
public class B extends A {
    public int hashCode(){
        //I want this to return the object implementation of hash code
        return 0;
    }
}

我希望b.hashCode()返回hashCode()的Object实现.不幸的是B必须扩展A,而A不能改变.

Answer 1

回来吧System.identityHashCode(this).