Java apache commons CLI, repetitive options - need the last entered arguments

Question

I'm just starting out with apache commons CLI in Java and could have CLI options which are repeated. Does apache commons automatically process?

Ex. (program -w arg 1 arg2 -w arg1 arg2).

I need the last pair of args assigned to option -w. Does apache commons automatically overwrite the args for repeated options?

Answer 1

Apache common takes in the first option/argument unless looped over. Just use two for loops, compare element at 'j' with element at 'i', return the element at 'j' and and element at 'j+1'

String[] options = {"-a","123","-b","456","-c","789","-a", "000"};
      List<String> res = new ArrayList<>();

      for(int i = 0; i<options.length; i++){
         for(int j = i+1; j<options.length; j++) {
             if(options[i].equals(options[j])){
                 res.add(options[j]);
                 res.add(options[j+1]);
             }
         }
      }
      
      for(String a: res)
        System.out.println(a);

The above code prints

"-a" and "000" 

which is your repeated option w/argument