1 public class Test4 {
 2     public static void main(String[] args){
 3         Son son = new Son();
 4         son.minusOne();
 5         System.out.println(son.testValue);
 6         System.out.println(son.getSuperTestValue());
 7         son.plusOne();
 8         System.out.println(son.testValue);
 9         System.out.println(son.getSuperTestValue());
10     }
11 }
12 class Father{
13     int testValue = http://www.mamicode.com/100;
14     public void minusOne(){
15         this.testValue--;
16     }
17 }
18 class Son extends Father{
19     int testValue = http://www.mamicode.com/0;
20     public void plusOne(){
21         testValue++;
22     }
23     public int getSuperTestValue(){
24         return super.testValue;
25     }
26 }