5.34（游戲：石頭、剪刀、布）編程練習題3.17給出玩石頭-剪刀-布游戲的程序。修改這個程序，讓用戶可以連續(xù)玩這個游戲，直到用戶或者計算機贏對手兩次以上為止

• 題目
• • 題目概述
  • 編程練習題3.17
  • 破題
  • 運行示例

題目

題目概述

5.34（游戲：石頭、剪刀、布）編程練習題3.17給出玩石頭-剪刀-布游戲的程序。修改這個程序，讓用戶可以連續(xù)玩這個游戲，直到用戶或者計算機贏對手兩次以上為止

編程練習題3.17

點擊這里快速跳轉至3.17博文，或復制以下URL到瀏覽器：

https://blog.csdn.net/weixin_46356698/article/details/119810073

3.17詳細代碼：

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");} }

破題

設置兩個計數(shù)變量，分別計算用戶、計算機勝利次數(shù)，當任意一個變量為3時，則結束游戲
所以在結果判斷部分進行修改、整體增加循環(huán)控制語句即可

import java.util.Scanner;public class Test5_34 {public static void main(String[] args) {int computer_win = 0, people_win = 0;for (; ; ) {// 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");}// 結果判斷if (computer == 0 && people == 1)computer_win += 1;else if (computer == 0 && people == 2)people_win += 1;else if (computer == 1 && people == 0)people_win += 1;else if (computer == 1 && people == 2)computer_win += 1;else if (computer == 2 && people == 0)computer_win += 1;else if (computer == 2 && people == 1)people_win += 1;elseSystem.out.print("本局平手\t");// 輸出當前比分并判斷是否需要結束循環(huán)System.out.println("人類:計算機分數(shù)為：" + people_win + ":" + computer_win);if (computer_win == 3 || people_win == 3){String str = (computer_win == 3) ? "計算機勝" : "人類勝";System.out.println(str);return;}}} }

運行示例

rock(0), scissor(1), paper(2): 1 人類:計算機分數(shù)為：1:0 rock(0), scissor(1), paper(2): 1 人類:計算機分數(shù)為：2:0 rock(0), scissor(1), paper(2): 1 人類:計算機分數(shù)為：2:1 rock(0), scissor(1), paper(2): 1 本局平手 人類:計算機分數(shù)為：2:1 rock(0), scissor(1), paper(2): 1 人類:計算機分數(shù)為：3:1 人類勝Process finished with exit code 0

總結

以上是生活随笔為你收集整理的Java黑皮书课后题第5章：**5.34（游戏：石头、剪刀、布）编程练习题3.17给出玩石头-剪刀-布游戏的程序。修改这个程序，让用户可以连续玩这个游戏，直到用户或者计算机赢对手两次以上为止的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

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