Java - Get Command Line Parameters

I couldn't find a simple way of parsing command line parameters passed to programs without needlessly importing libraries. String[]args is parsed using spaces only, so if you want more advanced parameters were you name the values and have multiple values like java Prog -opt0 blah blah2 -opt1 blah you'll need to parse it yourself.

Here's a simple way of doing more advanced command line parsing in Java:

 public HashMap> getCommandLineOptions(String[]args){
    
    HashMap> opts = null;
    String opt = null;	
    
     for(String arg:args){
        if(arg.startsWith("-")){
           opt=arg;
        }else if(opt!=null){
           ArrayList oopts = opts.get(opt);
           if(oopts==null){
       	     oopts=new ArrayList();
	   }
	   oopts.add(arg);
	   opts.put(opt,oopts);
	}
     }
     return opts;
  }