class TwoD{


    Scanner scanner = new Scanner(System.in);
    int userInputRows;
    int[][] vals = new int[userInputRows][];



    public void columnInput(){
        //System.out.println("How many rows would you like to have");
        //userInputRows = scanner.nextInt();
        for (int i=0; i<3;i++){
            System.out.println("Hello");
        }

        for (int row=0;row<vals.length;row++){
            int realRowID = row+1;
            System.out.println("For row "+realRowID + " How many columns would you like");
            int userInputColumns = scanner.nextInt();
            vals[row] = new int[userInputColumns];
        }
    }


}


public class MyClass {
    public static void main(String[] args) {
        TwoD twoDArray = new TwoD();
        twoDArray.columnInput();

    }
}