Prime Numbers Help Java

[coder752]

So I've created a program which outputs whether the user entered a prime or not.

Now, how do I output it so that for e.g: The user enter 5, it prints a 5X5 table.
The dimensions of the table is determined based on the number the user enters.

import java.util.*;

public class IsPrime {
	
	public static Scanner scanner = new Scanner(System.in);



	public static int readInt() {
		System.out.print("Enter an integer: ");
		while (!scanner.hasNextInt()) {
			scanner.next();
			System.out.print("That was not an integer.  Please try again: "); 
		}
		return scanner.nextInt();
	}




	public static boolean isPrime(int n) {
		if (n < 2) return false;
		if (n &#37; 2 == 0)
			// n is an even, so it returns true if n is exactly 2.
			return (n == 2);
		for (int i=3; i*i<=n; i+=2)
			if (n % i == 0)
			// i divides evenly into n, so n is not prime
				return false;
		return true;
	}
	
	
	public static void main(String[] args) {
		System.out.println("Prime Numbers\n");
		int n = readInt();
		if (isPrime(n))
			System.out.printf("%d is a prime.\n",n);
		else
			System.out.printf("%d is not a prime.\n",n);

                     //The part that I don't think is right.
		     //for(n=1; n<=12; n++){
                       // for(int y=1; y<=12; y++)
                        //System.out.printf("%4d",n%y);
			//}
	}
}