public class InterviewBit {

  public static void main(String[] args){

     int[][] 2dArray = new int[2][];

    2dArray[0] = new int[3];

     2dArray[1] = new int[4];

     int counter = 0;

     for(int row=0; row <2dArray.length; row++){

        for(int col=0; col < 2dArray[row].length; col++){

           2dArray[row][col] = counter++;

        }

     }

     for(int row=0; row < 2dArray.length; row++){

        System.out.println();

        for(int col=0; col < 2dArray[row].length; col++){

           System.out.print(2dnArray[row][col] + " ");

        }

     }

  }

}