import org.apache.commons.cli.*;
public class CommandLineParserExample {
public static void main(String[] args) {
Options options = new Options();
Option helpOption = Option.builder("h")
.longOpt("help")
.build();
options.addOption(helpOption);
Option nameOption = Option.builder("n")
.longOpt("name")
.hasArg()
.argName("NAME")
.build();
options.addOption(nameOption);
CommandLineParser parser = new DefaultParser();
try {
CommandLine cmd = parser.parse(options, args);
if (cmd.hasOption("h")) {
HelpFormatter formatter = new HelpFormatter();
formatter.printHelp("myprogram", options);
}
if (cmd.hasOption("n")) {
String name = cmd.getOptionValue("n");
System.out.println("Hello, " + name + "!");
}
} catch (ParseException e) {
}
}
}
