使用字符串方法查找和计算字符串中的元音？

Posted 2023-05-07

【中文标题】使用字符串方法查找和计算字符串中的元音？

【英文标题】：Use string methods to find and count vowels in a string?

【发布时间】：2016-08-09 08:19:31

【问题描述】：

当我的代码编译时，它会为我提供多个元音输出。几乎就像它在检查每个字符后给我一个输出一样。我如何让它只给出一个输出，包括我所有的元音和其他元音。在 1 个输出中？？

请帮忙...

import java.util.*;

public class Lowercasevowelcounter 

    public static void main(String[] args) 

    int a=0, e=0, x=0;
    int u=0, o=0, other=0;

    String text;
    Scanner sc = new Scanner(System.in);


    System.out.println("Enter a string of words : ");
    text = sc.nextLine();

    for (int i = 0; i < text.length(); i++)
        char c = text.charAt(i);

        if (c == 'a') a++;

        else if (c == 'e')  
          e++;

        else if (c == 'i')  
          x++;

        else if (c == 'o')
          o++;

        else if (c == 'u')
          u++;

        else 
          other++;

        System.out.println("a: " + a + "\n" +
                "e: " + e + "\n" +
                "i: " + x + "\n" +
                "o: " + o + "\n" +
                "u: " + u + "\n" +
                "other: " + other);
    
  

【参考方案1】：

你在 for 循环中有 System.out.println(...)。尝试将其提取到 for 循环之外。

...
for (int i = 0; i < text.length(); i++)
    char c = text.charAt(i);

    if (c == 'a')a++;
        else if (c == 'e')  e++;
        else if (c == 'i')  x++;
        else if (c == 'o')  o++;
        else if (c == 'u')  u++;
    else 
    other++;


System.out.println("a: " + a + "\n" +
        "e: " + e + "\n" +
        "i: " + x + "\n" +
        "o: " + o + "\n" +
        "u: " + u + "\n" +
        "other: " + other);
...