How do I do this??

I have a table [i][j] that are filled with random integers on each round of
a loop, but for a certain user input I want to keep column[n] while all
other numbers are changed.

I guess this is quite easy, but I just can't seem to figure it out.

Thanks in advance,
John Inge E

If to any help, this is the code for filling the table with integers:
(some norwegian words in there, sorry about that)

for (int column = 0; column < antRader; column++) {
       radNr = radNr+1;
       System.out.print("\t L" + radNr + " | ");
               
       for (int row = 0; row < (antRader); row++) {
               tabell[column][row] = ((int)(Math.random()*(antRandom)+1));
               System.out.print(tabell[column][row]+" - ");
       }
}