您好,Stack Overflow的用户们!今晚我来寻求有关我创建的Java程序的帮助。由于我相对较新于Java,请原谅我在这个话题上的无知。我制作了一个“石头”“剪刀”“布”游戏的Java程序,但似乎有一个语句存在错误。
import java.util.Scanner;
public class TheAntlers {
public static void main(String[] args) {
int playerHumanWins = 0;
int playerComputerWins = 0;
int numberOfTies = 0;
int computerResult;
Scanner input = new Scanner(System.in);
while(true) {
String startGame;
String playerHuman;
String playerComputer = " ";
System.out.print("Do you want to play \"Rock\", \"Paper\", \"Scissors\"? (Y/N): ");
startGame = input.nextLine();
startGame = startGame.toUpperCase();
if(startGame.equals("N")) {
System.out.println("NO!");
break;
}
else if(! startGame.equals("Y")) {
startGame = startGame.toLowerCase();
System.out.println("Sorry, " + startGame + " is not a valid entry...");
}
while(startGame.equals("Y")) {
System.out.print("Please choose \"Rock\", \"Paper\", or \"Scissors\": ");
playerHuman = input.nextLine();
computerResult = (int)(Math.random() * 3);
playerHuman = playerHuman.toUpperCase();
if(computerResult == 1) {
playerComputer = "ROCK";
}
else if(computerResult == 2) {
playerComputer = "PAPER";
}
else if (computerResult == 3) {
playerComputer = "SCISSORS";
}
switch (playerHuman) {
case "ROCK" :
if(playerComputer.equals(playerHuman)) {
System.out.println("Tie you both picked \"ROCK\"");
numberOfTies++;
}
else if(playerComputer.equals("PAPER")) {
System.out.println("Computer wins!");
playerComputerWins++;
}
else {
System.out.println("You win, \"ROCK\" beats " + "\"" + playerComputer + "\"");
playerHumanWins++;
return;
}
break;
case "PAPER" :
if(playerComputer.equals(playerHuman)) {
System.out.println("Tie you both picked \"PAPER\"");
numberOfTies++;
}
else if(playerComputer.equals("ROCK")) {
System.out.println("You win, \"PAPER\" beats " + "\"" + playerComputer + "\"");
playerHumanWins++;
return;
}
else {
System.out.println("Sorry, the computer won!");
playerComputerWins++;
}
break;
case "SCISSORS" :
if(playerComputer.equals(playerHuman)) {
System.out.println("Tie you both picked \"SCISSORS\"");
numberOfTies++;
}
else if(playerComputer.equals("PAPER")) {
System.out.println("You win, \"SCISSORS\" beats " + "\"" + playerComputer + "\"");
playerHumanWins++;
return;
}
else {
System.out.println("Sorry, the computer won!");
playerComputerWins++;
}
break;
default:
playerHuman = playerHuman.toLowerCase();
System.out.println("Sorry, " + playerHuman + " is not a valid entry...");
break;
}
}
}
}
}
我面临的问题与胜利计算有关。当我运行程序并重复输入“rock”直到获胜时,输出将为“您赢了,“ROCK”击败了“”,但选择任何其他选项时,我会得到“您赢了,“ROCK”击败了“PAPER”。
我的问题是,为什么我在玩“rock”时会得到一个空回调?
*如果您愿意指出任何其他帮助初学者的建议,那就太好了。*