Question

我有一个家庭作业，需要计算字符串中的元音。我的程序正在运行，但不会忽略辅音和空格。我在代码中缺少什么？

static void main(String[] args) {
    // TODO Auto-generated method stub
    boolean stopProgram = false;
    while(!stopProgram == true) {
        System.out.println("Enter a Word or \"q\" to end the program: "); // prompt the user for input
        Scanner wordScanner = new Scanner(System.in);
        String word = wordScanner.nextLine();
        if(!word.equals("q")) {
            String vowels[] = {"a","e","i","o","u","y","A","E","I","O","U","Y"}; //define upper and lower case vowels
            int count = 0;
            for(int i = 0; i < word.length(); i++) {
                if(String.valueOf(word.charAt(i)).equals(vowels[0]) ||
                        String.valueOf(word.charAt(i)).equals(vowels[1]));
                        String.valueOf(word.charAt(i)).equals(vowels[2]);
                        String.valueOf(word.charAt(i)).equals(vowels[3]);
                        String.valueOf(word.charAt(i)).equals(vowels[4]);
                        String.valueOf(word.charAt(i)).equals(vowels[5]);
                        String.valueOf(word.charAt(i)).equals(vowels[6]);
                        String.valueOf(word.charAt(i)).equals(vowels[7]);
                        String.valueOf(word.charAt(i)).equals(vowels[8]);
                        String.valueOf(word.charAt(i)).equals(vowels[9]);
                        String.valueOf(word.charAt(i)).equals(vowels[10]);
String.valueOf(word.charAt(i)).equals(vowels[11]);

                        count++;
                }
            System.out.println(("The Vowel Count is: ") + count);   
            }


    }
}

}

Answer 1

那是你的if语句：

if(String.valueOf(word.charAt(i)).equals(vowels[0]) ||
                    String.valueOf(word.charAt(i)).equals(vowels[1]));

你在最后的;打破了if语句。

之后，有很多语句（结果被忽略）

 String.valueOf(word.charAt(i)).equals(vowels[1]));

不再是if语句的一部分。

然后，你会在每次迭代时递增计数 - 无论if，它是否被;打断。

Answer 2

首先你应该让你的代码更清洁：在你的时间之外创建你的元音列表，这样你就不会在每次迭代时创建它，然后使用双循环来运行你的元音选项卡：< / p>

static void main(String[] args) {
    // TODO Auto-generated method stub
    boolean stopProgram = false;
    String vowels[] = {"a","e","i","o","u","y","A","E","I","O","U","Y"}; //define upper and lower case vowels
    while(!stopProgram == true) {
        System.out.println("Enter a Word or \"q\" to end the program: "); // prompt the user for input
        Scanner wordScanner = new Scanner(System.in);
        String word = wordScanner.nextLine();
        if(!word.equals("q")) {
            int count = 0;
            for(int i = 0; i < word.length(); i++) {
                for(int j = 0; j < 12; ++j){
                    if(String.valueOf(word.charAt(i)).equals(vowels[j]){
                        ++count;
                        break;
                    }
                }
            }
        System.out.println(("The Vowel Count is: ") + count);   
        }
    }
}

我的节目不计算元音

2 个答案: