猜拳小遊戲

今天咱們來編寫一款猜拳小遊戲

分析：要求鍵入剪刀，石頭，布，用數字分別表明剪刀，石頭，布。​

java中有一個Math.random();能夠生成【0，1）之間的隨機數，因此說這裏用1，2，3表明剪刀，石頭，布。 而電腦隨機生成其中一個數字與用戶輸入的數字比較，當輸入錯誤的時候會提示輸入錯誤，請從新輸入。

​每次猜拳有三種可能性，若是電腦贏，電腦積分+10，人的積分不變；

若是人贏，人積分+10，電腦積分不變；

若是打成平手，積分不變。

須要分別定義兩個變量接收積分的變化。

 

最後要將這兩個變量的​值作比較。

​

​import java.util.Scanner;

public class Problem8 {

public static void main(String[] args) {

Scanner scan = new Scanner(System.in);

System.out.println("歡迎來到猜拳小遊戲");

System.out.println("======================================");

System.out.print("請輸入遊戲回合數：");

int num = scan.nextInt();

int scoreHuman = 0;

int scoreComputer = 0;

int i = 1;

for (; i <= num; i++) {

// System.out.println("======================================");

// System.out.println("第" + i + "回合，你的積分：" + scoreHuman + ",電腦的積分："

// + scoreComputer);

//

// System.out.println("======================================");

// System.out.print("出拳（1：剪刀，2：石頭，3：布）：");

humanFightWithComputer(i, scoreHuman, scoreComputer);// 代替上部分代碼功能

while (num > 0) {

int outFist = scan.nextInt();

int computerOutFist = (int) (Math.random() * 3 + 1);

if (outFist == 1 || outFist == 2 || outFist == 3) {

if (computerOutFist == 1 && outFist == 1) {

System.out.println("你：剪刀");

System.out.println("電腦：剪刀");

System.out.println("平均，積分不變");

scoreHuman += 0;

scoreComputer += 0;

break;

} else if (computerOutFist == 2 && outFist == 1) {

System.out.println("你：剪刀");

System.out.println("電腦：石頭");

System.out.println("電腦贏，積分+10");

scoreHuman += 0;

scoreComputer += 10;

break;

} else if (computerOutFist == 3 && outFist == 1) {

System.out.println("你：剪刀");

System.out.println("電腦：布");

System.out.println("你贏，積分+10");

scoreHuman += 10;

scoreComputer += 0;

break;

} else if (computerOutFist == 1 && outFist == 2) {

System.out.println("你：石頭");

System.out.println("電腦：剪刀");

System.out.println("你贏，積分+10");

scoreHuman += 10;

scoreComputer += 0;

break;

} else if (computerOutFist == 2 && outFist == 2) {

System.out.println("你：石頭");

System.out.println("電腦：石頭");

System.out.println("平局，積分不變");

scoreHuman += 0;

scoreComputer += 0;

break;

} else if (computerOutFist == 3 && outFist == 2) {

System.out.println("你：石頭");

System.out.println("電腦：布");

System.out.println("電腦贏，積分+10");

scoreHuman += 0;

scoreComputer += 10;

break;

} else if (computerOutFist == 1 && outFist == 3) {

System.out.println("你：布");

System.out.println("電腦：剪刀");

System.out.println("電腦贏，積分+10");

scoreHuman += 0;

scoreComputer += 10;

break;

} else if (computerOutFist == 2 && outFist == 3) {

System.out.println("你：布");

System.out.println("電腦：石頭");

System.out.println("你贏，積分+10");

scoreHuman += 10;

scoreComputer += 0;

break;

} else if (computerOutFist == 3 && outFist == 3) {

System.out.println("你：布");

System.out.println("電腦：布");

System.out.println("平局，積分不變");

scoreHuman += 0;

scoreComputer += 0;

break;

}

break;

} else {

System.out.println("出拳錯誤，請從新出拳");

}

}

// if(scoreHuman>scoreComputer){

// System.out.println("======================================");

// System.out.println("大獲全勝！你的積分："+scoreHuman+"，電腦積分："+scoreComputer);

// System.out.println("======================================");

//

// }else if(scoreHuman==scoreComputer){

// System.out.println("======================================");

// System.out.println("棋逢對手！你的積分："+scoreHuman+"，電腦積分："+scoreComputer);

// System.out.println("======================================");

// }else{

// System.out.println("======================================");

// System.out.println("不幸敗北！你的積分："+scoreHuman+"，電腦積分："+scoreComputer);

// System.out.println("======================================");

// }

}

whoWin(scoreHuman, scoreComputer);//代替上部分代碼功能

}

public static void humanFightWithComputer(int i, int scoreHuman,

int scoreComputer) {

System.out.println("======================================");

System.out.println("第" + i + "回合，你的積分：" + scoreHuman + ",電腦的積分："

+ scoreComputer);

System.out.println("======================================");

System.out.print("出拳（1：剪刀，2：石頭，3：布）：");

}

public static void whoWin(int scoreHuman, int scoreComputer) {

if (scoreHuman > scoreComputer) {

System.out.println("======================================");

System.out.println("大獲全勝！你的積分：" + scoreHuman + "，電腦積分："

+ scoreComputer);

System.out.println("======================================");

} else if (scoreHuman == scoreComputer) {

System.out.println("======================================");

System.out.println("棋逢對手！你的積分：" + scoreHuman + "，電腦積分："

+ scoreComputer);

System.out.println("======================================");

} else {

System.out.println("======================================");

System.out.println("不幸敗北！你的積分：" + scoreHuman + "，電腦積分："

+ scoreComputer);

System.out.println("======================================");

}

}

}