Java程式計算句子中母音和子音的個數


在本文中,我們將瞭解如何在Java中計算母音和子音的個數。包括'a' 'e' 'i' 'o' 'u'的字母稱為母音,所有其他字母稱為子音。

下面是演示:

輸入

假設我們的輸入是:

Hello, my name is Charlie

輸出

期望的輸出將是:

The number of vowels in the statement is: 8
The number of vowels in the Consonants is: 12

演算法

Step1- Start
Step 2- Declare two integers: vowels_count, consonants_count and a string my_str
Step 3- Prompt the user to enter a string value/ define the string
Step 4- Read the values
Step 5- Run a for-loop, check each letter whether it is a consonant or an vowel. Increment
the respective integer. Store the value.
Step 6- Display the result
Step 7- Stop

示例 1

這裡,輸入是根據提示由使用者輸入的。您可以在我們的程式碼練習工具 執行按鈕中嘗試此示例。

import java.util.Scanner;
public class VowelAndConsonents {
   public static void main(String[] args) {
      int vowels_count, consonants_count;
      String my_str;
      vowels_count = 0;
      consonants_count = 0;
      Scanner scanner = new Scanner(System.in);
      System.out.println("A scanner object has been defined ");
      System.out.print("Enter a statement: ");
      my_str = scanner.nextLine();
      my_str = my_str.toLowerCase();
      for (int i = 0; i < my_str.length(); ++i) {
         char ch = my_str.charAt(i);
         if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
            ++vowels_count;
         }
         else 
         if ((ch >= 'a' && ch <= 'z')) {
            ++consonants_count;
         }
      }
      System.out.println("The number of vowels in the statement is: " + vowels_count);
      System.out.println("The number of vowels in the Consonants is: " + consonants_count);
   }
}

輸出

A scanner object has been defined
Enter a statement: Hello, my name is Charlie
The number of vowels in the statement is: 8
The number of vowels in the Consonants is: 12

示例 2

這裡,整數已預先定義,並且其值在控制檯上被訪問和顯示。

public class VowelAndConsonents {
   public static void main(String[] args) {
      int vowels_count, consonants_count;
      vowels_count = 0;
      consonants_count = 0;
      String my_str = "Hello, my name is Charie";
      System.out.println("The statement is defined as : " +my_str );
      my_str = my_str.toLowerCase();
      for (int i = 0; i < my_str.length(); ++i) {
         char ch = my_str.charAt(i);
         if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
            ++vowels_count;
         } 
         else 
         if ((ch >= 'a' && ch <= 'z')) {
            ++consonants_count;
         }
      }
      System.out.println("The number of vowels in the statement is: " + vowels_count);
      System.out.println("The number of vowels in the Consonants is: " + consonants_count);
   }
}

輸出

The statement is defined as : Hello, my name is Charie
The number of vowels in the statement is: 8
The number of vowels in the Consonants is: 11

更新於: 2022年2月21日

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