Java tutorial
/* * ======================================================================== * * Copyright 2005 Tim O'Brien. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * ======================================================================== */ package com.discursive.jccook.cmdline; import org.apache.commons.cli.BasicParser; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.CommandLineParser; import org.apache.commons.cli.OptionBuilder; import org.apache.commons.cli.OptionGroup; import org.apache.commons.cli.Options; public class CliComplexExample { public static void main(String[] args) throws Exception { CommandLineParser parser = new BasicParser(); Options options = new Options(); options.addOption("h", "help", false, "Print this usage information"); options.addOption("v", "verbose", false, "Print out VERBOSE debugging information"); OptionGroup optionGroup = new OptionGroup(); optionGroup.addOption(OptionBuilder.hasArg(true).create('f')); optionGroup.addOption(OptionBuilder.hasArg(true).create('m')); options.addOptionGroup(optionGroup); CommandLine commandLine = parser.parse(options, args); boolean verbose = false; String file = ""; String mail = ""; if (commandLine.hasOption('h')) { System.out.println("Help Message"); System.exit(0); } if (commandLine.hasOption('v')) { verbose = true; } if (commandLine.hasOption('f')) { file = commandLine.getOptionValue('f'); } else if (commandLine.hasOption('m')) { mail = commandLine.getOptionValue('m'); } System.exit(0); } }