java check if characters of string is number

/**
 * @author lautturi.com
 * Java example: check if first character of string is number or not
 */

import java.util.*;

public class Lautturi {
	public static void main(String[] args) {

		String myString = "1234";
		if(Character.isDigit(myString.charAt(0))){
		 	System.out.println("First character of string is a number");
		}
		else{
			System.out.println("First character of string is not a number");
		}

	}
}