1 public class Test {
 2  
 3    public void main(String[] args){
 4           new JavanTiger();
 5        }
 6     }
 7     class Tiger
 8   {
 9     int age; // 年龄
10     int hight; // 身体高度 
11     public Tiger(int age) {
12     this.age = age;
13     print();
14    }
15   public void print() {
16     System.out.println("I‘am a " + age + "岁 " + hight + "尺高 tiger!");
17       }
18   }
19   class JavanTiger extends Tiger{    
20        public JavanTiger(){
21            super(1);    // 调用父类有参数的构造函数
22         }
23        public void main(String[] args){
24            new JavanTiger();
25         }
26 }