* @param args the command line.
* @throws Exception for reasons made clear later in the manual.
*/
// @@snip:Manual_HelloWorld_8@@
public static void main(String[] args) throws Exception {
JSAP jsap = new JSAP();
FlaggedOption opt1 = new FlaggedOption("count")
.setStringParser(JSAP.INTEGER_PARSER)
.setDefault("1")
.setRequired(true)
.setShortFlag('n')
.setLongFlag(JSAP.NO_LONGFLAG);
opt1.setHelp("The number of times to say hello.");
jsap.registerParameter(opt1);
QualifiedSwitch sw1 = (QualifiedSwitch)
(new QualifiedSwitch("verbose")
.setShortFlag('v')
.setLongFlag("verbose")
.setList(true)
.setListSeparator(','));
sw1.setHelp("Requests verbose output.");
jsap.registerParameter(sw1);
UnflaggedOption opt2 = new UnflaggedOption("name")
.setStringParser(JSAP.STRING_PARSER)
.setDefault("World")
.setRequired(true)
.setGreedy(true);
opt2.setHelp("One or more names of people you would like to greet.");
jsap.registerParameter(opt2);
JSAPResult config = jsap.parse(args);
if (!config.success()) {
System.err.println();
// print out specific error messages describing the problems
// with the command line, THEN print usage, THEN print full
// help. This is called "beating the user with a clue stick."
for (java.util.Iterator errs = config.getErrorMessageIterator();
errs.hasNext();) {
System.err.println("Error: " + errs.next());
}
System.err.println();
System.err.println("Usage: java "
+ Manual_HelloWorld_8.class.getName());
System.err.println(" "
+ jsap.getUsage());
System.err.println();
System.err.println(jsap.getHelp());
System.exit(1);
}
String[] names = config.getStringArray("name");
String[] languages = config.getStringArray("verbose");