馬克-to-win，Super是一個參考(或說指針)指向他緊鄰的父類(見下面的例子)。Super is a reference of its neighbour superclass

So Use super to call superclass’s constructor

用super可以指向被隱藏的父類的同名成員。Use super to call superclass’s members that has been hidden by a member of a subclass.

3.1 super指向父類的成員

注 意： 下例中：子類和父類都有i，我們一共有兩個i，用super可以指向前一個父類的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被賦值

i?=?y;//B的i被賦值

}

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

總結

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