public class Example {

	// lastVisit 2010-08-10

	// your command line parser
	private static final CmdLineParser parser = new CmdLineParserImpl();

	public static void main(String[] args) {

		try {

			// Build all options you want to parse for

			// Build a StringSingleOption to parse for a option, that provides
			// one string as a value
			final StringSingleOption h = new OptionBuilder()
					.setShortIdentifier('h').setLongIdentifier("hans")
					.setDescription("hans option").newStringSingleOption();

			// Build a StringMultiOption to parse for a option, that provides a
			// list of string values
			final StringMultiOption m = new OptionBuilder().setRequired(true)
					.setShortIdentifier('m').newStringMultiOption();

			// Build a BooleanOption to parse for a boolean value
			final BooleanOption b0 = new OptionBuilder()
					.setDescription("the new pope is german!")
					.setLongIdentifier("german-pope").newBooleanOption();

			// Build another Boolean option
			final BooleanOption b1 = new OptionBuilder()
					.setDescription("the new pope is swedish!")
					.setLongIdentifier("swedish-pope").newBooleanOption();

			// since there can be only one pope, and this one can either be from
			// germany or from sweden, we must exclude the two boolean options
			// from each other
			b0.addClashOption(b1);

			// make option m require option h
			m.addRequiredOption(h);

			// register your options
			parser.registerOption(h);
			parser.registerOption(m);
			parser.registerOption(b0);
			parser.registerOption(b1);

			// finally start parsing
			args = parser.parse(args);

			// print a help, just to see how it looks
			// c.printHelp("usage:");

			// print out all options from command line that could not be
			// recognized
			System.out.println("unknown options: \"" + Arrays.asList(args)
					+ "\"");

			// finally lets see what we got:
			// start the program with following command line:
			//
			// --german-pope=true -m=rambo,john -h=john-rambo
			//
			// play around a bit and see what happens!

			System.out.println("parsed options:");
			if (h.isSet())
				System.out.println(h + ": \"" + h.getValue() + "\"");
			if (m.isSet())
				System.out.println(m + ": \"" + m.getValues() + "\"");
			if (b0.isSet())
				System.out.println(b0 + ": \"" + b0.getValue() + "\"");
			if (b1.isSet())
				System.out.println(b1 + ": \"" + b1.getValue() + "\"");

		} catch (OptionClashException e) {
			exitWithKnownError(
					"the new pope cannot be both from germany and sweden!", e,
					parser);
		} catch (NoValueGivenException e) {
			exitWithKnownError("missing value for option!", e, parser);
		} catch (Exception e) {
			exitWithUnknownError(e.getLocalizedMessage(), e, parser);
		}
	}

	private static void exitWithKnownError(String message, Throwable t,
			CmdLineParser parser) {
		System.err.println(message);
		if (t != null)
			// t.printStackTrace();
			if (parser != null)
				parser.printHelp("Program usage:");
		System.exit(1);
	}

	private static void exitWithUnknownError(String message, Throwable t,
			CmdLineParser parser) {
		System.err.println(message);
		if (t != null)
			t.printStackTrace();
		if (parser != null)
			parser.printHelp("Program usage:");
		System.exit(2);
	}

}