how to count vowels in string in java

// There are many ways to do it the one i came up with is this: int count = 0; String sentence = "My name is DEATHVADER, Hello World!!! XD"; char[] vowels = {'a', 'e', 'i', 'o', 'u'}; for (char vowel : vowels) for (char letter : sentence.toLowerCase().toCharArray()) if (letter == vowel) count++; System.out.println("Number of vowels in the given sentence is " + count); // I have found another easier method if you guyz don't understand this // but this is also easy xD. // here you can see another method: // https://www.tutorialspoint.com/Java-program-to-count-the-number-of-vowels-in-a-given-sentence

print vowels in string java

 
package org.arpit.java2blog;
 
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;
 
public class VowelFinder
{
    public static void main(String args[])
    {
        Scanner scanner = new Scanner(System.in);
 
        System.out.print("Enter an String : ");
        String str = scanner.next();
 
        Set<Character> set=new HashSet<Character>();
        for (int i = 0; i < str.length(); i++) {
            char c=str.charAt(i);
            if(isVowel(c))
            {
                set.add(c);
            }
        }
 
        System.out.println("Vowels are:");
        for (Character c:set) {
            System.out.print(" "+c);
        }
 
        scanner.close();
    }
 
    public static boolean isVowel(char character)
    {
 
        if(character=='a' || character=='A' || character=='e' || character=='E' ||
                character=='i' || character=='I' || character=='o' || character=='O' ||
                character=='u' || character=='U'){
            return true;
        }else{
            return false;
        }
    }
 
}

Posted by: Guest on August-02-2021

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