Question

所以我想将用户输入转换为变量然后将其添加到数组中，而是将字符直接插入数组并跳过3行代码。这里的守则

import java.util.*;
public class Hangman{

public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    System.out.println("Please enter your word and press enter: ");
    String word = sc.nextLine();
    System.out.println("Please enter a relevant category and press enter: ");
    String category = sc.nextLine();
    word.toUpperCase();
    char charArray[] = new char[word.length()];


    for(int i = 0; i<=word.length(); i++){
        System.out.println("Category: " + category);
        System.out.println("Letters Guessed: " + Arrays.toString(charArray));
        System.out.println("Your guess: ");
        char guess = sc.nextLine().charAt(0);
        compare(guess, word);
        charArray[i] = guess;


    }
}
public static boolean compare(char guess, String word){
    for(int i = 0; i<word.length(); i++){
        if(guess == word.charAt(i)){
            return true;
        }
    }
    return true;
}
}

输出：

Please enter your word and press enter: 
hello
Please enter a relevant category and press enter: 
test
Category: test
Letters Guessed: [hi
Category: test
Letters Guessed: [h, l
Category: test
Letters Guessed: [h, l, m
Category: test
Letters Guessed: [h, l, m, o
Category: test
Letters Guessed: [h, l, m, o, n
Category: test
Letters Guessed: [h, l, m, o, n]
Your guess:

有人可以提供一些提示

Answer 1

您的比较方法无效：

public static boolean compare(char guess, String word){
    for(int i = 0; i<word.length(); i++){
        if(guess != word.charAt(i)){
            return false;
        }
    }
    return true;
}

Answer 2

首先，您应该像其他人建议的那样修改您的compare()方法，这样它就不会总是返回true。

其次，您应该使用main()方法中的返回值。如果比较为真与假，则不清楚你想做什么，所以一般来说，

if (compare(guess, word)) { 
    /* Do something */ 
} else { 
   /* Do something else here */
}

Answer 3

这篇文章中关于预期产出和实际产出存在一些含糊之处;以下几点必须考虑。

字符串是不可变的，但您使用word.toUpperCase（）而不指定它。像：

word = word.toUpperCase（）;
您正在使用比较方法但未使用其决定，如

if（compare（guess，word））{
```
   //do something
```
}

错误的数组输入

3 个答案: