getLength("Hallo");
		System.out.println(getLength("Hallo")); // 5
		System.out.println(getLength(null)); // -1
		System.out.println(getLength("")); // 0
		System.out.println("=========================");

		System.out.println((getLength(new String[0])));
		System.out.println((getLength(new String[] { "a", "b" })));

	}

	private static int getLength(String... checkString) {

		if (checkString == null || checkString.length == 0) {
			return -1;

		} else if (checkString.length == 1) {
			return checkString[0].length();
		} else {
			return checkString.length;
		}
	}