如何计算Java中字符串中辅音的数量？

Question

我正在编写一个程序，计算用户输入的句子中元音和辅音的数量。我下面的代码计算元音的数量，但它为辅音计数提供了奇怪的数字。例如，如果我输入“g”，我得到的辅音计数是10。

import java.util.Scanner;

public class VowelCount{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    System.out.print("Enter a sentence :");
    String sentence = scan.nextLine();

    String vowels = "aeiouAEIOU";
    int vowelCount = 0;
    int consCount = 0;
    int i;

      for(i = 0; i < sentence.length(); i += 1){
        char currentChar = sentence.charAt(i);
        int index;
        for(index = 0; index < vowels.length(); index += 1){
          if(vowels.charAt(index) == (currentChar)){
            vowelCount++;
          }else if(Character.isLetter(currentChar) && (vowels.charAt(index) == (currentChar))){
            consCount++;
          }
        }
      }
      System.out.println(consCount);
      System.out.println(vowelCount);
  }   
}

Answer 1

在那一行中：否则if（Character.is字母

else if(Character.isLetter(currentChar)){

Answer 2

这是最终的解决方案伙计们：）

import java.util.Scanner;

public class VowelConsCount
{ public static void main(String args[])
    { System.out.print("Enter a sentence :");
      Scanner in = new Scanner(System.in);
      String sentence = in.nextLine();

      String vowels = "aeiouAEIOU";
      int vowelCount = 0;
      int consCount = 0;
      int i;

      for(i = 0; i < sentence.length(); i ++)
         { char currentChar = sentence.charAt(i);
           if (vowels.indexOf(currentChar)>=0)
                vowelCount++;
           else if(Character.isLetter(currentChar))
                consCount++;
         }
      System.out.print("\nNumber of vowels is "+vowelCount);
      System.out.print("\nNumber of consonant is "+consCount);
    }
}

Answer 3

这是可行的。我还改进了它，请参见元音。indexOf（而不是手动迭代）和带有isleter（纠正元音的错误检查）的行，并输出（添加）和i。

public class VowelCount{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    System.out.print("Enter a sentence :");
    String sentence = scan.nextLine();

    String vowels = "aeiouAEIOU";
    int vowelCount = 0;
    int consCount = 0;
    int i;

    int length = sentence.length();
    for(i = 0; i < length; i ++){
        char currentChar = sentence.charAt(i);
        if (vowels.indexOf(currentChar)>=0)
           vowelCount++;
        else if(Character.isLetter(currentChar))
                consCount++;
    }
    System.out.print(consCount+";");
    System.out.print(vowelCount);
  }
}