继承的使用

/*继承的使用*/
class Person11{
private String name;
private int age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public void prin(){
System.out.println("名字："+name+",   年龄："+age);
}
}


class Student extends Person11{

}
public class ExtendsDemo {


public static void main(String[] args) {
// TODO Auto-generated method stub
Student st1 = new Student();
st1.setAge(20);
st1.setName("张三");
st1.prin();
}


}