Java parsing command line arguments ( args[]) into an int[][] Type

Question

Can somebody please tell me how to parse the following into an int[][] Type. This is the structure of numbers which are typed into the java args "1,2;0,3 3,4;3,4 " (the first 4 numbers should represent a matrix as well as the last 4 numbers; so i need both parsed as a int[][] ) but how can i take this and parse it into an int[][] type ?

First thing would be this i guess :

String[] firstmatrix = args[0].split(";");
String[] rowNumbers = new String[firstmatrix.length];
for(int i=0; i< firstmatrix.length; i++) {   
    rowNumbers = firstmatrix[i].split(",");

 }

but i cant get it to work out -.-

Edit : At first thank you for all your help. But i should have mentioned that exception handling is not necesarry. Also, i am only allowed to use java.lang and java.io

edit 2.0: Thank you all for your help!

Answer 1

public static void main(String[] args) throws IOException {
        List<Integer[][]> arrays = new ArrayList<Integer[][]>();

        //Considering the k=0 is the show, sum or divide argument
        for(int k=1; k< args.length; k++) {
            String[] values = args[k].split(";|,");
            int x = args[k].split(";").length;
            int y = args[k].split(";")[0].split(",").length;
            Integer[][] array = new Integer[x][y];
            int counter=0;
            for (int i=0; i<x; i++) {
                for (int j=0; j<y; j++) {
                    array[i][j] = Integer.parseInt(values[counter]);
                    counter++;
                }
            }
            //Arrays contains all the 2d array created
            arrays.add(array); 
        }
        //Example to Show the result i.e. arg[0] is show
        if(args[0].equalsIgnoreCase("show"))
            for (Integer[][] integers : arrays) {
                for (int i=0; i<integers.length; i++) {
                    for (int j=0; j<integers[0].length; j++) {
                        System.out.print(integers[i][j]+" ");
                    }
                    System.out.println();
                }
                System.out.println("******");
            }
    }

input

show 1,2;3,4 5,6;7,8

output

1 2 
3 4 
******
5 6 
7 8 

---

input for inpt with varible one 3*3 one 2*3 matrix

show 1,23,45;33,5,1;12,33,6 1,4,6;33,77,99

output

1 23 45 
33 5 1 
12 33 6 
******
1 4 6 
33 77 99 
******