Java-17，super关键字

class FatherClass {
    public int value;
    public void f(){
        value = 100;
        System.out.println
        ("FatherClass.value="+value);
    }
}

class ChildClass extends FatherClass {
    public int value;
    public void f() {
        super.f();
        value = 200;
        System.out.println
             ("ChildClass.value="+value);
        System.out.println(value);
        System.out.println(super.value);
    }
} 

public class TestInherit {
    public static void main(String[] args) {
        ChildClass cc = new ChildClass();
        cc.f();
    }
}