Java.Lang.NullPointerException -- Array Problem -- Couldn't fixed

["Mr.Spark" <malmanea@gmail.com>]

Hi Guys, I could not solve this problem, when I tried to throw an
exception the code will not be executed to see

the results.

I think the problem is with the array .

The Code :


import java.util.Random;

public class RunAlgorithm {

	static int n = 3; // Number of processes

	public static void main(String[] args) {

		int random_id;
		int Lowest_id;

		Random rn = new Random();
		SecurityModule[] s = new SecurityModule[n];

		// Initializing Security Modules

		for (int i = 0; i < n; i++) {
			s[i].ID = 0;
			s[i].State = false;
		}

		// Generating Random ID numbers for the Security Modules

		for (int i = 0; i < n; i++) {
			random_id = rn.nextInt(99) + 1;
			s[i].ID = random_id;                                    -- the
problem is in this line
			log("Random ID = " + random_id);

		}

		// To get the lowest ID

		Lowest_id = GetLowestID(s);
		System.out.println(" The Lowest ID is: " + Lowest_id);

		// The initiator with the lowest ID will generate a random number K
> 1

		int k = rn.nextInt(9) + 2;
		log("Round = " + k);

		// Generating a random number i in {1,2,3,...n}

		int i = rn.nextInt(3) + 1;
		log("i = " + i);
	}

	public static int GetLowestID(SecurityModule s[]) {

		int LowestID = s[0].ID;
		for (int i = 1, limit = s.length; i < limit; ++i) {
			if (s[i].ID < LowestID)
				LowestID = s[i].ID;
		}
		return LowestID;
	}



}

I hope that I can find a solution for this problem.

Thanks guys ..