random numbers into an array

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Join Date: May 2008

Posts: 2

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geisteskrankhei geisteskrankhei is offline

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random numbers into an array

May 13th, 2008

Basically, I have to make a code that requests user input. The program asks them to tell me how many columns/rows the user wants the magic square to have. I need to then generate random numbers for each spot.

ex: user inputs 3, out put looks like

3 7 1
6 4 9
8 2 5

I know how to generate a single random number but I've been trying to figure out how I'm going to get as many as the user needs.

Numbers cannot be duplicated, but I can tackle that if statement on my own easily. it's just the part that involves multiple random numbers put into an array that I am having difficulty on. Any help would be greatly appreciated. So far, my code looks like:

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 import java.awt.*;
import hsa.Console;
import java.util.Random;

public class MagicSquare
{
    static Console c;           

    public static void main (String[] args)
    {
        c = new Console ();

        Random random = new Random ();
        c.println ("How many numbers up/down and left/right would you like in your magic square?");
        int size = c.readInt ();
        int NumberOfRandoms = (size * size);
        int myRandomNumber = random.nextInt (NumberOfRandoms) + 1;
        c.println (myRandomNumber);

        
    } 
}

Last edited by geisteskrankhei : May 13th, 2008 at 6:45 pm.