*3.17（游戲：剪刀、石頭、布）編寫可以玩流行的剪刀-石頭-布游戲的程序

• 題目
• • 題目概述
  • 運(yùn)行示例
  • ***特別注意***
  • 破題
• 代碼

題目

題目概述

*3.17（游戲：剪刀、石頭、布）編寫可以玩流行的剪刀-石頭-布游戲的程序
剪刀可以剪布，石頭可以砸剪刀，而布可以包石頭
程序提示用戶隨機(jī)產(chǎn)生一個(gè)數(shù)，這個(gè)數(shù)為0或1或2，分別代表石頭、剪刀、布
程序提示用戶用戶輸入值0或1或2，顯示一條消息，表明用戶和計(jì)算機(jī)誰贏誰輸或打平

運(yùn)行示例

scissor(0), rock(1), paper(2): 1
The computer is scissor. You are rock. You won

scissor(0), rock(1), paper(2): 2
The computer is paper. You are paper too. It is a draw

特別注意

這里的運(yùn)行示例有問題，應(yīng)該是石頭0剪刀1布2，即：
rock(0), scissor(1), paper(2)
書上的倆運(yùn)行示例提示是錯(cuò)誤的

破題

Math.random()隨機(jī)產(chǎn)生[0, 3)，強(qiáng)轉(zhuǎn)為int型即可隨機(jī)生成0或1或2
接收用戶輸入的數(shù)值

012

石頭	剪刀	布

游戲規(guī)則簡化：

電腦\人類0石頭1剪刀2布

0石頭	平	電腦勝	人類勝
1剪刀	人類勝	平	電腦勝
2布	電腦勝	人類勝	平

代碼

import java.util.Scanner;public class Test3_17 {public static void main(String[] args) {// 電腦與人類產(chǎn)生石頭剪刀布的代碼int computer = (int)(Math.random()*3);Scanner input = new Scanner(System.in);System.out.println("rock(0), scissor(1), paper(2): ");int people = input.nextInt();// 判斷人類輸入是否合法if(people != 0 && people != 1 && people != 2){System.out.println("輸入不合法");System.exit(1);}// 結(jié)果判斷if(computer == 0 && people == 0)System.out.println("The computer is rock. You are rock too. It is a draw");if(computer == 0 && people == 1)System.out.println("The computer is rock. You are scissor. Computer won");if(computer == 0 && people == 2)System.out.println("The computer is rock. You are paper. You won");if(computer == 1 && people == 0)System.out.println("The computer is scissor. You are rock. You won");if(computer == 1 && people == 1)System.out.println("The computer is scissor. You are scissor too. It is a draw");if(computer == 1 && people == 2)System.out.println("The computer is scissor. You are paper. Computer won");if(computer == 2 && people == 0)System.out.println("The computer is paper. You are rock. Computer won");if(computer == 2 && people == 1)System.out.println("The computer is paper. You are scissor. You won");if(computer == 2 && people == 2)System.out.println("The computer is paper. You are paper too. It is a draw");} }

總結(jié)

以上是生活随笔為你收集整理的Java黑皮书课后题第3章：*3.17（游戏：剪刀、石头、布）编写可以玩流行的剪刀-石头-布游戏的程序的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

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