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游戏开始随机生成4位数字符串#xff0c;每个数字从0到9各不相同#xff0c;比如0123玩家10次猜数机会#xff0c;输入4位数字符串#xff0c;每个数字从0到9各不相同游戏判断玩家输入与所猜谜底数#xff0c;给出结果nAnB#xff0c;A表示位置和数字都猜对的个数每个数字从0到9各不相同比如0123玩家10次猜数机会输入4位数字符串每个数字从0到9各不相同游戏判断玩家输入与所猜谜底数给出结果nAnBA表示位置和数字都猜对的个数B表示数字猜对位置不对的个数
代码
import java.util.Arrays;
import java.util.HashSet;
import java.util.Random;
import java.util.Scanner;
import java.util.Set;public class NumberGuessingGame {public static String generateRandomNumber() {Random random new Random();Integer[] digits {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};Arrays.asList(digits);Arrays.sort(digits, (a, b) - random.nextInt(3) - 1); // Shuffle the array randomlyreturn Arrays.toString(Arrays.copyOf(digits, 4)).replaceAll(\\D, );}public static boolean hasDuplicateDigits(String number) {SetCharacter digitSet new HashSet();for (char digit : number.toCharArray()) {if (!digitSet.add(digit)) {return true; // Duplicate digit found}}return false; // No duplicate digits}public static int[] evaluateGuess(String secretNumber, String userGuess) {int[] result new int[2]; // Index 0: A (correct digit and position), Index 1: B (correct digit but wrong position)for (int i 0; i secretNumber.length(); i) {char secretChar secretNumber.charAt(i);char guessChar userGuess.charAt(i);if (secretChar guessChar) {result[0];} else if (secretNumber.contains(String.valueOf(guessChar))) {result[1];}}return result;}public static void main(String[] args) {Scanner scanner new Scanner(System.in);String secretNumber generateRandomNumber();int attemptsLeft 10;System.out.println(欢迎来到猜数字游戏);System.out.println(每个数字都是0到9之间的不同数字。);System.out.println(你有10次机会猜对它。);while (attemptsLeft 0) {System.out.print(请输入你的猜测四位数);String userGuess scanner.nextLine();// Check if the input is a four-digit number with distinct digitsif (!userGuess.matches(\\d{4}) || hasDuplicateDigits(userGuess)) {System.out.println(请确保输入是一个四位数且没有相同的数字。);continue;}int[] evaluation evaluateGuess(secretNumber, userGuess);System.out.println(结果 evaluation[0] A evaluation[1] B);if (evaluation[0] 4) {System.out.println(恭喜你猜对了答案是 secretNumber);break;}attemptsLeft--;System.out.println(剩余猜测次数 attemptsLeft);}if (attemptsLeft 0) {System.out.println(很遗憾你没有在10次内猜对。正确答案是 secretNumber);}}
}
