public class RM {
    static class A implements SSa{//加上static；
        public String a;
        public int b;
        public A(String a,int b){
            this.a=a;
            this.b=b;
        }

        @Override
        public String getC() {
            return a+"**";
        }

        @Override
        public int getB() {
 

            return b*2;
        }
        public void getA(){
            System.out.println("你好呀！@");

        }
    }
      static class B extends A implements SSa{//類中類的繼承都要加上static；
        public B(String a,int b){
            super(a,b);
        }

        @Override
        public String getC() {
            return super.getC();
 

        }

        @Override
        public void getA() {
            super.getA();
        }

        @Override
        public int getB() {
            return b*9;
        }
    }
    public static void main(String[] args){
        People people=new People("張三",12);
        people.getA();
        System.out.println(people.getC());
 

        System.out.println(people.getB());
        System.out.println("****************12392340");
        Test test=new Test("xie ting ming",20);
        test.getA();
        System.out.println(test.getC());
        System.out.println(test.getB());
        System.out.println("@@@@@@@@@@@@@@@@@@@");
        A a=new A("H",24);
        a.getA();
        System.out.println(a.getB());
        System.out.println(a.getC());
        System.out.println("&&&&&&&&&&&&&&&&&&&&&&&&&");
        B b=new B("xiao zhang",12);
        b.getA();
        System.out.println(b.getB());
        System.out.println(b.getC());

    }
}
interface SSa{
    public void getA();
    public int getB();
    public String getC();
}
class People implements SSa{
    public String name;
    public int age;

    @Override
    public String getC() {
        return age+name;
    }
    public int getB(){
        return age;

    }
    public void getA(){
        int i=0;
        for( i=0;i<9;i++){
            System.out.print(" ");
        }
        for(int j=0;j<9-i;j++){
            System.out.print("*");
        }
        for(int j=0;j<i-1;j++){
            System.out.print("*");
        }
        for(int j=0;j<i;j++){
            System.out.print("*");
        }
        System.out.println();
    }
    public  People(String name, int age){
        this.name=name;
        this.age=age;
    }
}
class Test extends People implements SSa {
    Test(String name,int age){
        super(name,age);
    }

    @Override
    public String getC() {
        return "my name is"+name;
    }

    @Override
    public void getA() {
        System.out.println("hello world !");
    }

    @Override
    public int getB() {
        return super.getB();
    }
}