Question

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

public class GuessingGameGUI {

    public static void main(String[] args) {
        Random rand = new Random();
        int value = rand.nextInt(32) + 1;
        int guesses = 0, LowGuess = 0, HighGuess = 0; //ADDED LowGuess AND HighGuess
        Scanner input = new Scanner(System.in);
        int guess;
        boolean win = false;
        while (win == false) {
            JOptionPane.showInputDialog("Guess a number between 1 and 32: ");
            guess = input.nextInt();
            guesses++;
            if (guess == value) {
                win = true;
            } else if (guess < value) {
                JOptionPane.showInputDialog("Your guess is lower than random number");
                LowGuess++; //COUNTER TO KEEP TRACK OF LOW GUESSES
            } else if (guess > value) {
                JOptionPane.showInputDialog("Your guess is higher than random number");
                HighGuess++; //COUNTER TO KEEP TRACK OF HIGH GUESSES
            }
        }
        JOptionPane.showMessageDialog(null, "You win! You are the worst guesser in history!");
        JOptionPane.showMessageDialog(null, "The number was: " + value);

// ADDED FROM HERE (GUESSES)
        JOptionPane.showMessageDialog(null, "Number of Guesses:" + guesses);
        for (int x = 1; x <= guesses; x++) {
            for (int a = 1; a <= guesses; a++) {
                if (a == guesses) {
                    JOptionPane.showMessageDialog(null, "*");
                }
            }
        } // TO HERE FOR AMOUNT OF GUESSES

// I ADDED FROM HERE (LOW)
        JOptionPane.showMessageDialog(null, "Smaller Guesses:" + LowGuess);
        for (int Low_i = 1; Low_i <= LowGuess; Low_i++) {
            for (int Low_e = 1; Low_e <= LowGuess; Low_e++) {
                if (Low_e == LowGuess) {
                    JOptionPane.showMessageDialog(null, "*");
                }
            }
        } // Then TO HERE FOR LOW

// I ADDED FROM HERE (HIGH)
        JOptionPane.showMessageDialog(null, "Largest Guesses:" + HighGuess);
        for (int High_i = 1; High_i <= HighGuess; High_i++) {
            for (int High_e = 1; High_e <= HighGuess; High_e++) {
                if (High_e == HighGuess) {
                    JOptionPane.showMessageDialog(null, "*");
                }
            }
        } //FINALLY TO HERE FOR HIGH
    }
}

//当我运行我的程序时，当我输入我的猜测号码时会弹出消息框，但是它似乎停止了，没有其他任何东西弹出来让我知道如果我猜到高或低。

Answer 1

采取这些行，例如：

JOptionPane.showInputDialog("Guess a number between 1 and 32: ");
guess = input.nextInt();

会出现一个提示，要求您输入1到32之间的数字＆＃34;。因此，您输入数字，然后执行停止，因为您的Scanner正在等待您的输入。您需要完全删除扫描仪才能避免这些频繁的中断。

showInputDialog的{{1}}方法会返回JOptionPane，如Javadocs中的示例所示：

显示一个对话框，要求用户输入字符串：
String

按原样，您应该丢弃从方法返回的值，而应该将其分配给变量。要将返回的值分配给String inputValue = JOptionPane.showInputDialog("Please input a value");变量int，请使用guess：

Integer.parseInt

Answer 2

JOptionPane.showInputDialog返回String，而不是每次收到输入时都要使用Parse方法将String转换为int。

String input = JOptionPane.showInputDialog（）;

Int number = Integer.parseInt（input）;

如何在我的猜谜游戏中使用JOption？

2 个答案: