一个关于剪刀石头纸游戏的Java代码 [英] A Java code about scissor-rock-paper game
问题描述
我已经学习了 1 个月的 Java.我对我的代码有疑问.有问题.如果我按0,结果只有计算机赢"和平局"两种情况.所以当我按 1 和 2 时,它只出现了两个.这里有什么问题?
I’ve learned Java for 1 month. I have a question about my code. There is something wrong.If I press 0, the outcomes only has "Computer win" and "Tie" two situation. So as I press 1 and 2, it only comes out two. What's wrong in here ?
import java.util.Scanner;
public class Hm3 {
public static void main (String[] args) {
int Computer=0,Player=0,tie=0,compic=0,pscore=0;tie=0;
int end = 0;
Scanner scan = new Scanner(System.in);
while (end < 3) {
System.out.print("Enter 0 for Scissors, 1 for Rock, and 2 for Paper : ");
pscore = scan.nextInt();
compic = (int)(Math.random()*2);
switch (pscore){
case 0 :
if (compic == 0){
System.out.println("Tie");
tie++;
}else if (compic == 1){
System.out.println("Computer Win");
Computer++;
}else{
System.out.println("Player Win");
Player++;
end++;
}
break;
case 1 :
if (compic == 0){
System.out.println("Player Win");
Player++;
end++;
}else if (compic == 1){
System.out.println("Tie");
tie++;
}else{
System.out.println("Computer Win");
Computer++;
}break;
case 2 :
if (compic == 0){
System.out.println("Computer Win");
Computer++;
}else if (compic == 1){
System.out.println("Player Win");
Player++;
end++;
}else{
System.out.println("Tie");
tie++;
}break;
default :
System.out.println("The wrong value");
break;
}
}
System.out.println("");
System.out.println("The player wins : " + Player);
System.out.println("The computer wins : " + Computer);
System.out.println("Tie : " + tie);
}
}
推荐答案
是的,我也认为问题在于您的随机数生成.在处理整数时,我更喜欢使用这种方法,因为不涉及舍入或强制转换:
Yes I also believe that the problem is with your random number generation. When dealing with integers I prefer to use this method because there is no rounding or casting involved:
Random random = new Random(); //create a random object
random.nextInt(3); //will return a random integer from 0 to 2
nextInt() 方法括号中的数字是范围,如果你想从 1 到 3 就改成
The number in the parenthesis of the nextInt() method is the range if you want to go from 1 to 3 just alter it to
random.nextInt(3) + 1;
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