package Modules;

import gnu.getopt.Getopt;
import gnu.getopt.LongOpt;

public class TestGetOpt {

	public static void getArgs(String args[]) {

		LongOpt[] longopts = new LongOpt[4];
		StringBuffer sb = new StringBuffer();

		longopts[0] = new LongOpt("parametre1", LongOpt.NO_ARGUMENT, null, 's');
		longopts[1] = new LongOpt("parametre2", LongOpt.OPTIONAL_ARGUMENT, null, 'm');
		longopts[2] = new LongOpt("parametre3", LongOpt.OPTIONAL_ARGUMENT, sb, 'c'); 
		longopts[3] = new LongOpt("parametre4", LongOpt.NO_ARGUMENT, null, 'h');
		//Getopt g = new Getopt("Hosto", args, "-:s::m:a::c::h::b",longopts);
		Getopt g = new Getopt("Hosto", args, "sm:c:h",longopts);
		int c;
		String arg;
		while((c=g.getopt())!=-1){
			switch(c){
			case 's':
				arg = g.getOptarg();
				System.err.println("-s or --parametre1 (without value: value [" + arg +"])");
				break;
			case 'm':
				arg=g.getOptarg();
				System.err.println("-m or --parametre2 with [" + arg + "] value");
				//System.exit(0);
				break;
    		
			case 'c':
				arg=g.getOptarg();
				System.err.println("-c or --parametre3 with [" + arg + "] value");
				//System.exit(0);
				break;
    		
			case 'h':
				arg=g.getOptarg();
				System.err.println("-h only (without value) with [" + arg + "] value");
				//System.exit(0);
				break;
    		
			default:
				System.err.println("getopt() returned "+c);
				//help();
				break;
			}
		}
    }

	public static void main(String args[]) throws Exception {

		System.out.println("Test with:");
		for (String arg: args) {
			System.out.println("   [" + arg + "]");
		}
		
		getArgs(args);
		
	}
}


Résultat d'un test:

Test with:
   [-h]
   [--parametre1]
   [-m]
   [arg_m]
   [-c]
   [arg_c]
-h only (without value) with [null] value
-s or --parametre1 (without value: value [null])
-m or --parametre2 with [arg_m] value
-c or --parametre3 with [arg_c] value

		    LongOpt[] longopts = new LongOpt[4];
		    StringBuffer sb = new StringBuffer();

		    longopts[0] = new LongOpt("parametre1", LongOpt.NO_ARGUMENT, null, 's');
		    longopts[1] = new LongOpt("parametre2", LongOpt.OPTIONAL_ARGUMENT, null, 'm');
		    longopts[2] = new LongOpt("parametre3", LongOpt.OPTIONAL_ARGUMENT, sb, 'c'); 
		    longopts[3] = new LongOpt("parametre4", LongOpt.NO_ARGUMENT, null, 'h');
		    Getopt g = new Getopt("Hosto", args, "-:s::m:a::c::h::b",longopts);
		    int c;
		    String arg;
		    while((c=g.getopt())!=-1){
		    	switch(c){
		    	case 's':
		    		arg = g.getOptarg();
		    		System.err.println("parametre1");
		    		break;
		    	case 'm':
		    		arg=g.getOptarg();
		    		System.err.println("parametre2");
		    		//System.exit(0);
		    		break;
		    		
		    	case 'c':
		    		arg=g.getOptarg();
		    		System.err.println("parametre4");
		    		//System.exit(0);
		    		break;
		    		
		    	default:
		    		System.err.println("getopt() returned "+c);
		    		//help();
		    		break;
		    	}
		    }

Getopt g = new Getopt("monProgramme", args, "param1::param2::param3::param4")

-param2[:complement-de-param2-optionnel]

 fichier1 [-param1 -param2[:complement param2 optionnel] ] [-param3 -param4] 

 fichier1 [-param1 -param2[:complement-de-param2-optionnel] ] [-param3 -param4] 

$ java TestGetOpt -H "localhost 8080" -n 1234

2012-12-07 16:38:40,625 INFO  - TestGetOpt.java:39   - TestGetOpt: Starting in progress...
2012-12-07 16:38:40,625 INFO  - TestGetOpt.java:40   - with:
2012-12-07 16:38:40,625 INFO  - TestGetOpt.java:42   -    [-H]
2012-12-07 16:38:40,625 INFO  - TestGetOpt.java:42   -    [localhost 8080]
2012-12-07 16:38:40,640 INFO  - TestGetOpt.java:42   -    [-n]
2012-12-07 16:38:40,640 INFO  - TestGetOpt.java:42   -    [1234]
2012-12-07 16:38:40,640 INFO  - TestGetOpt.java:75   - case 'H': You picked option 'H' with argument [localhost 8080]
2012-12-07 16:38:40,640 INFO  - TestGetOpt.java:83   - case 'n': You picked option 'n' with argument [1234]
2012-12-07 16:38:40,640 INFO  - TestGetOpt.java:123  - TestGetOpt: Stopped

fichier1 [-param1 -param2[:complement param2 optionnel] ] [-param3 -param4]