Show a number in hex form

In Java, the 'toHexString' method will convert a number into a string that represents that number in hex form. However, this string is not usually formatted in the way that most people would expect - it does not begin with '0x' and does not contain leading zeros. Here is a function that does just that. This method works with a long, but a similar method could be created for other data types such as ints.

        /**
	 * Convert a long into a hex string.
	 *
	 * @param decimal the long
	 * @return the formatted hex string
	 */
	public static String convertToHex(long decimal) {
		String x = Long.toHexString(decimal);
		if (x.length() <= 2) {
			while (x.length() < 2) {
				x = "0" + x;
			}
		} else if (x.length() <= 4) {
			while (x.length() < 4) {
				x = "0" + x;
			}
		} else if (x.length() <= 6) {
			while (x.length() < 6) {
				x = "0" + x;
			}
		} else {
			while (x.length() < 8) {
				x = "0" + x;
			}
		}
		x = "0x" + x;
		return x;
	}