题解 | #实现接口#

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
       Demo d=new Demo();

        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNextInt()) {
            int x = scanner.nextInt();
            int y = scanner.nextInt();
            System.out.println(d.max(x, y));
        }
    }

}

interface Comparator {
    /**
     * 返回两个整数中的最大值
     */
    int max(int x, int y);
}

//write your code here......
 class Demo implements Comparator{
     public  int  max(int x,int y){
            if(x<y){
                return y;
            }else{
                return x;
            }
       }
 }