Java convert char array to string

/**
 * @author lautturi.com
 * Java example: 
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		char[] arr = { 'H', 'e', 'l', 'l', 'o', '!' };
		String str = String.valueOf(arr);
		System.out.println(str);

	}
}

output:

Hello!