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Java Program to count number of vowels in a string

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instanceof java

Posts: 576
Nickname: instanceof
Registered: Jan, 2015

instanceof java is a java related one.
Java Program to count number of vowels in a string Posted: Sep 13, 2015 10:01 AM
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This post originated from an RSS feed registered with Java Buzz by instanceof java.
Original Post: Java Program to count number of vowels in a string
Feed Title: Instance Of Java
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Feed Description: Instance of Java. A place where you can learn java in simple way each and every topic covered with many points and sample programs. 		Latest Java Buzz Posts
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Solution #1:

  1. package com.javatutorial;
  2.  
  3. public class CountNumberofVowels {
  4.  
  5.  public static void main(String[] args) {
  6.   
  7. System.out.println("Please enter a String");
  8. Scanner in = new Scanner(System.in);                  
  9.  String input = in.nextLine();
  10.  
  11.      char[] Chararray = input.toCharArray();
  12.  
  13.  int count = 0;
  14.  
  15.  for (char ch : Chararray) {
  16.       switch (ch) {
  17.              case 'a':
  18.              case 'e':
  19.              case 'i':
  20.              case 'o':
  21.              case 'u':
  22.              case 'A':
  23.              case 'E':
  24.              case 'I':
  25.              case 'O':
  26.              case 'U':
  27.                  count++;
  28.      break;
  29.      default:
  30.             
  31.      }
  32.  }
  33.        System.out.println("Number of vowels in String "+count);
  34.  
  35. }

  37. }
Output:

  1. Please enter a String
  2. Instance Of Java
  3. Number of vowels in String 6
     
Solution #2:

  1. package com.javatutorial;
  2.  
  3. public class CountNumberofVowels {
  4.  
  5.  public static void main(String[] args) {
  6.  
  7.  int vowels = 0, digits = 0, blanks = 0; char ch; 

  9. System.out.println("Please enter a String");
  10. Scanner in = new Scanner(System.in);                  
  11. String testString= in.nextLine();
  12.  
  13.  
  14. for(int i = 0; i < testString.length(); i ++)
  15. {
  16.  
  17.   ch = testString.charAt(i);
  18.  
  19.   if(ch == 'a' || ch == 'A' || ch == 'e' || ch == 'E' || ch == 'i' ||   
  20.       ch == 'I' || ch == 'o' || ch == 'O' || ch == 'u' || ch == 'U')
  21.           vowels ++;
  22.        else if(Character.isDigit(ch))
  23.           digits ++;
  24.      else if(Character.isWhitespace(ch))
  25.            blanks ++;
  26.   }
  27.  
  28.     System.out.println("Vowels : " + vowels);
  29.     System.out.println("Digits : " + digits);
  30.     System.out.println("Blanks : " + blanks);           
  31.    
  32.  
  33. }

  35. }
Output:

  1. Please enter a String
  2. vowels and consonants
  3. Vowels : 6
  4. Digits : 0
  5. Blanks : 2

Read: Java Program to count number of vowels in a string

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