print vowels in string java

1// There are many ways to do it the one i came up with is this:  
2int count = 0;
3String sentence = "My name is DEATHVADER, Hello World!!! XD";
4char[] vowels = {'a', 'e', 'i', 'o', 'u'};
5for (char vowel : vowels) 
6  for (char letter : sentence.toLowerCase().toCharArray()) 
7    if (letter == vowel) count++;
8System.out.println("Number of vowels in the given sentence is " + count);
9
10// I have found another easier method if you guyz don't understand this
11// but this is also easy xD.
12// here you can see another method:
13// https://www.tutorialspoint.com/Java-program-to-count-the-number-of-vowels-in-a-given-sentence

1 
2package org.arpit.java2blog;
3 
4import java.util.HashSet;
5import java.util.Scanner;
6import java.util.Set;
7 
8public class VowelFinder
9{
10    public static void main(String args[])
11    {
12        Scanner scanner = new Scanner(System.in);
13 
14        System.out.print("Enter an String : ");
15        String str = scanner.next();
16 
17        Set<Character> set=new HashSet<Character>();
18        for (int i = 0; i < str.length(); i++) {
19            char c=str.charAt(i);
20            if(isVowel(c))
21            {
22                set.add(c);
23            }
24        }
25 
26        System.out.println("Vowels are:");
27        for (Character c:set) {
28            System.out.print(" "+c);
29        }
30 
31        scanner.close();
32    }
33 
34    public static boolean isVowel(char character)
35    {
36 
37        if(character=='a' || character=='A' || character=='e' || character=='E' ||
38                character=='i' || character=='I' || character=='o' || character=='O' ||
39                character=='u' || character=='U'){
40            return true;
41        }else{
42            return false;
43        }
44    }
45 
46}
47 
48

1String str = "hello";
2String vowels = "aeiou";
3
4for(char c : str) if(vowels.contains(c)) System.out.println(c + "");