剪刀,石头,布(猜拳游戏)

package judgment;
import java.util.Scanner;
/**
 * 模拟剪刀,石头,布,游戏
 */
public class Judgment {
 public static void main(String[] args) {
 int computer=(int)(Math.random()*3);
 Scanner input=new Scanner(System.in);
 System.out.println("你出什么?剪刀(1)/石头(0)/布(2)");
 int user=input.nextInt();
 switch (computer){
 case 0: System.out.println("系统出的石头"); break;
 case 1: System.out.println("系统出的剪刀"); break;
 case 2: System.out.println("系统出的布"); break;
 }
 if (computer==user){
 System.out.println("平局");
 }else if (computer-user==-1||computer-user==2){
 System.out.println("抱歉,您输了");
 }else{
 System.out.println("恭喜你,你赢了");
 }
 }
}