Java tutorial
/** * @authors Bala Subrahmanyam Kambala, Daniel William DaCosta * @license GPLv3 (http://www.gnu.org/copyleft/gpl.html) * @descriptrion A class to wrap up argument handling.. */ import org.apache.commons.cli.CommandLineParser; import org.apache.commons.cli.BasicParser; import org.apache.commons.cli.Option; import org.apache.commons.cli.Options; import org.apache.commons.cli.OptionBuilder; import org.apache.commons.cli.OptionGroup; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.HelpFormatter; public class ArgumentHandler { Options options; String syntax; String header; String footer; public ArgumentHandler(String _syntax, String _header, String _footer) { options = new Options(); syntax = _syntax; header = _header; footer = _footer; } public void addOption(Option p) { options.addOption(p); } public void addOption(String a, String b, boolean c, String d) { options.addOption(a, b, c, d); } public CommandLine parse(String[] args) { CommandLine commandLine; try { CommandLineParser parser = new BasicParser(); commandLine = parser.parse(options, args); return commandLine; } catch (Exception e) { usage("\nImproper Usage!\n"); System.exit(1); return null; } } public void usage(String msg) { HelpFormatter helpFormatter = new HelpFormatter(); helpFormatter.setWidth(80); helpFormatter.printHelp(syntax, msg + header, options, footer); } }