public class Chks {

	public static void main(String[] args) {

		System.out.println(String.format("Version: %s", System.getProperty("java.version")));

		String[] parts1 = "A,B,C".split(",", -1);
		String[] parts2 = "A,,C".split(",", -1);
		String[] parts3 = "A,  ,C".split(",", -1);
		String[] parts4 = "  ,  ,  ".split(",", -1);
		String[] parts5 = ",,".split(",", -1);
		
		check(1, parts1);
		check(2, parts2);
		check(3, parts3);
		check(4, parts4);
		check(5, parts5);
	}

	private static void check(int idx, String[] strs) {

		System.out.print(String.format("%d : strs:[%d];", idx, strs.length));

		for(String item : strs) {
			try {
				System.out.print(String.format("var:[%s];", item));
				
				if (item == null) System.out.print("null;");
				
				if (item == "") System.out.print("zeroLen;");

				if (item.isEmpty()) System.out.print("empty;");

				System.out.print(String.format("len=%d;", item.length()));

			} catch (Exception e) {
				//e.printStackTrace();
			}
		}

		System.out.println();
	}
}