java程序的结构和使用

class 类名{

}

import java.util.Scanner;

public class demo {

public static void main(String[] args) {

Scanner scanner = new Scanner(http://System.in);

System.out.println("请依次输入两个整数：a,b（以空格隔开）");

/*比较两个数的大小*/

int a = scanner.nextInt();

int b = scanner.nextInt();

int max;

if(a >= b){

max = a;

}else {

max = b;

}

System.out.println("值为"+max);

}

}

}