import java.util.Scanner;
public class ScissorsRockPaper {

public static void main(String[] args){

Scanner scanner = new Scanner(System.in);
System.out.println("欢迎来玩剪刀石头布游戏！");
System.out.println("请输入你的选择：剪刀、石头、布");
String PlayerChoice = scanner.nextLine();

String Choices[] = {"石头","剪刀","布"};
int ComputerChoiceInt = (int) (Math.random()*3);
String ComputerChoice = Choices[ComputerChoiceInt];
System.out.println("电脑选择了:" +ComputerChoice);

switch (PlayerChoice){

case "剪刀":

if (ComputerChoice.equals("剪刀"))

{

System.out.println("平局");
}

else if (ComputerChoice.equals("石头"))

{

System.out.println("电脑胜利,你输了");
}

else if (ComputerChoice.equals("布"))

{

System.out.println("恭喜你，你赢了");
}

break;

case "石头":

if (ComputerChoice.equals("石头"))

{

System.out.println("平局");
}

else if (ComputerChoice.equals("布"))

{

System.out.println("电脑胜利,你输了");
}else if (ComputerChoice.equals("剪刀"))

{

System.out.println("恭喜你，你赢了");
}

break;

case "布":

if (ComputerChoice.equals("布"))

{

System.out.println("平局");
}

else if (ComputerChoice.equals("剪刀"))

{

System.out.println("电脑胜利,你输了");
}else if (ComputerChoice.equals("石头"))

{

System.out.println("恭喜你，你赢了");
}

break;
default:

System.out.println("请输入符合要求的选项");
}

scanner.close();

}

}