super 与 this 一起抓狂！

java 代码

/***********************************************************************
 * Module:  AssertTest.java
 * Author:  danlley
 * Modified: 2006年7月27日 14:36:21
 * Purpose: Defines the class AssertTest
 ***********************************************************************/

class MyParent {
        int x, y;

        MyParent(int x, int y){
                this.x = x;
                this.y = y;
        }

        public int addMe(int x, int y){
                return this.x + x + y + this.y;
        }

        public int addMe(MyParent myPar){
                return addMe(myPar.x, myPar.y);
        }
}

class MyChild extends MyParent{
        int z;

        MyChild (int x, int y, int z){
                super(x,y);
                System.out.println("this.x"+this.x);
                this.z = z;
        }

        public int addMe(int x, int y, int z){
                return this.x + x + this.y + y + this.z + z;
        }

        public int addMe(MyChild myChi){
                return addMe(myChi.x, myChi.y, myChi.z);
        }

        public int addMe(int x, int y){
                return this.x + x + this.y + y;
        }
}
public class MySomeOne{
        public static void main(String args[]){
                MyChild myChi = new MyChild(10, 20, 30);
                MyParent myPar = new MyParent(10, 20);
                int x = myChi.addMe(10, 20, 30);
                int y = myChi.addMe(myChi);
                int z = myPar.addMe(myPar);
                System.out.println(x + y + z);
        }
}

+++++++++++++++++++++++++++++++++++++
选项如下：
A.300
B.240
C.120
D.180
E.compile error
F.none of the above
++++++++++++++++++++++++++++++++++++++
正确答案：A

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对象作用域代码分析 | AssertionError 的来源

• 2007-07-17 10:52
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