马克-to-win，Super是一个参考(或说指针)指向他紧邻的父类(见下面的例子)。Super is a reference of its neighbour superclass

So Use super to call superclass’s constructor

用super可以指向被隐藏的父类的同名成员。Use super to call superclass’s members that has been hidden by a member of a subclass.

3.1 super指向父类的成员

注 意： 下例中：子类和父类都有i，我们一共有两个i，用super可以指向前一个父类的i。 note that: in the following case, subclass and super class both have a i, so altogether they have two i.

例1.3.1

class AMark_to_win {

int i;

}

class B extends AMark_to_win {

int i;

public B(int x, int y) {

super.i = x;//AMark_to_win 的 i被赋值

i = y;//B的i被赋值

}

public void show() {

System.out.println("i in superclass: " + super.i);

System.out.println("i in subclass: " + i);

}

}

public class Test {

public static void main(String[] args) {

B b = new B(2, 3);

b.show();

}

}

result is:

i in superclass: 2

i in subclass: 3