Remove Vowels from a given String

Objective: Given a String, remove all the vowels from the string.

What Are Vowels?
The letters A, E, I, O, and U are called vowels. The other letters in the alphabet are called consonants.

Example:

Input String: algorithms @ tutorial horizon
Updated String: lgrthms @ ttrl hrzn

Approach:

Iterate through all the characters, if find vowel, skip it else add it to the result.

Code:

	public class RemoveVowels {

	public void removeVowels(String input){
	StringBuffer result = new StringBuffer();
	char[] chars = input.toCharArray();
	for (int i = 0; i <chars.length ; i++) {
	char chr = chars[i];
	if(!isVowel(chr))
	result.append(chr);
	}
	System.out.println("Updated String: " + result);
	}

	public boolean isVowel(char chr){
	String vowels="AEIOUaeiou";
	if(vowels.contains(chr+""))
	return true;
	else
	return false;
	}

	public static void main(String[] args) {
	RemoveVowels r = new RemoveVowels();
	String input = "algorithms @ tutorial horizon";
	System.out.println("Input String: " + input);
	r.removeVowels(input);
	}
	}

Output:

Input String: algorithms @ tutorial horizon
Updated String: lgrthms @ ttrl hrzn