java capitalize the first letter in string

/**
 * @author lautturi.com 
 * Java example: change first letter in string to upper case
 */

import java.util.*;

import org.apache.commons.lang3.StringUtils;

public class Lautturi {

	public static void main(String[] args) {

		String str = "hello lautturi java world";
		String capStr = StringUtils.capitalize(str);
		
		System.out.println(capStr);
	}

}

output:

Hello lautturi java world