Integer to Unicode

Had to iterate across a bunch of unicode chars and as such, needed to write this snippet of code to generate unicode from integers

	 * This method determines the unicode string representation of an integer
	 * @param num
	 *            The integer whose unicode string representation is required
	 * @return Unicode representation of the integer
	private static String IntToUnicodeString(int num)
			throws IllegalArgumentException {
		if (num  0x10FFFF)
			throw new IllegalArgumentException(Integer.toHexString(num)
					+ " is less than 0 or larger than the greatest unicode value 0x10FFFF");
		return new String(Character.toChars(num));

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