import org.apache.commons.cli.*; public class MyCLIApp { public static void main(String[] args) { Options options = new Options(); CommandLineParser parser = new DefaultParser(); try { CommandLine cmd = parser.parse(options, args); if (cmd.hasOption("h")) { HelpFormatter formatter = new HelpFormatter(); formatter.printHelp("mycliapp", options); } else { String username = cmd.getOptionValue("u"); String password = cmd.getOptionValue("p"); } } catch (ParseException e) { } } }