java - 我在随机数猜谜游戏中遇到了 while 循环

Question

希望它循环遍历所有内容，直到用户输入正确的数字。当用户输入错误的号码时，它应该说“输入不同的号码”。当用户输入正确的数字时，它应该说“恭喜你赢了”。但在那之前它会循环并说“输入不同的数字”并且在尝试 5 次后我希望它说“你失败了这个任务!你想再试一次吗？”

如果他们猜中 1 次，他们将给予 500 美元，第二次尝试 400 美元，依此类推，直到尝试 5 次。

import javax.swing.*;
import java.util.Random;

public class Projekt_1 {

    public static void main(String[] args) {
        JOptionPane.showMessageDialog(null, "WELCOME TO GUESS GAME!" + "\nYou gonna guess a number between 1 and 20 " + "\nYou have  5 tries to guess the number! " + "\nYou gonna get more money on less tries, highest win are 500 dollar on one try! " + "\nHOPE YOU LIKE IT :)");

        Random talet = new Random();
        int secretnumber = talet.nextInt(20) + 1;
        int tries = 0;
        int money = 600;
        String number;

        int guess;
        boolean win = false;

        while (win == false) {
            number = JOptionPane.showInputDialog("Guess a number between 1 and 20");
            guess = Integer.parseInt(number);
            tries++;

            if (guess == secretnumber) {
                win = true;
            } else if (guess > secretnumber) {
                JOptionPane.showInputDialog("Your number is to low :(" + "\nType in a higher number!");
                guess = Integer.parseInt(number);
            } else if (guess < secretnumber) {
                JOptionPane.showInputDialog("Your number is to high :(" + "\nType ina a lower number!");
                guess= Integer.parseInt(number);
            }
        }

        JOptionPane.showMessageDialog(null, "Congrats you won!" + "\nYour number was " + secretnumber + "\nit took you " + tries + "tries");
    }
}   

Answer 1

在 while 循环中添加附加条件将起作用。如果 försök 是可以具有 5 最大值的尝试次数(在您的情况下)，则条件应为:

while (win == false && försök<5) //if försök starts from 0 
{
   //code
   if(win==true)
   break;
   försök++;
}

要显示消息和分数，您可以在 while 循环之后检查 försök 的值:

if(försök==5)
{
      // display this message: "you failed this mission! do you want to try again?" 
     score=0;
}
else
{
     //display: "congrats you won"
      score=(5-försök)*100;
}

基本上你的代码应该是这样的:

import javax.swing.*;
import java.util.Random;

class Projekt_1
{
public static void main(String[] args) {
        final int maxTries = 5;
        JOptionPane.showMessageDialog(null, "Welcome... " + maxTries + " tries ... 500 krones ");

        final Random rnd = new Random();
        final int hemligtnummer = rnd.nextInt(20) + 1;
        int tryCounter = 0;
        final int pengar = 500;
        String nummer;

        int guess = -1;

        while (guess != hemligtnummer && tryCounter < maxTries) {
            if(tryCounter==0)
            nummer = JOptionPane.showInputDialog("...a number 1 and 20");
            else
            nummer = JOptionPane.showInputDialog("Enter no...");
            guess = Integer.parseInt(nummer);
            if (guess == hemligtnummer) {
                break;
            } else if (guess > hemligtnummer) {
                JOptionPane.showMessageDialog(null, "Try " + (tryCounter+1) + " was too big try a smaller one");
            } else if (guess < hemligtnummer) {
                JOptionPane.showMessageDialog(null, "Try " + (tryCounter+1) + " too small try a bigger one");
            }
            tryCounter++;
        }
        if(tryCounter==5){
            JOptionPane.showMessageDialog(null,"Grattis du vann!" + "\nteh number was " + hemligtnummer + "\nDet tog dig " + tryCounter + " försök");
            JOptionPane.showMessageDialog(null, "Your price is :" + (pengar - tryCounter * 100) + " Krones");
        }
        else
        {
            JOptionPane.showMessageDialog(null,"congrats you won"+"Your price is :" + (pengar - tryCounter * 100) + " Krones" );
        }
    }
}