Prime Number Help

[Drazzminius]

I've made the following updates:

import javax.swing.JOptionPane;

public class PrimeNumber {
	// Main Method
	public static boolean isPrime(int num) {
		
		int[] numbers = new int[0];
		// Reads an input number
		for (int i = 0; i < numbers.length; i++) {
			String numString = JOptionPane.showInputDialog(null,
			"Enter a number: ",
			"Assignment 5.1 Input", JOptionPane.QUESTION_MESSAGE);
			
		// Convert string into integer
		numbers[i] = Integer.parseInt(numString);		
		}
		// Determines primes
		if (num <  2) return false;
		if (num == 2) return true;
		int n = (int) Math.sqrt(num);
		for (int i = 3; i < n; i += 2) {
			if (num&#37;i == 0) return false;
		}
		return true;
	}
	public void main(String[] args) {
		//Declares "primes" as my variable
		int[] primes = new int[1000];	
		primes[0] = 2;				
		int count = 1;
		int num = 3;
		// Finds the first 1000 primes
		while (count<1000) {
			if (isPrime(num)) {
				primes[count] = num; 
				count++;
			}
			num = num + 2;
		}
		// Prepares the output
		String output = "The first 1000 primes are: ";
		for (int i=0; i<primes.length; i++)
		
		output += primes[i] + "\t";
		 		
			// Display the result
		JOptionPane.showMessageDialog(null, output, 
			"Assignment 5.1 Output", JOptionPane.INFORMATION_MESSAGE);
		
		System.exit(0);
	}
}

It shows as building properly, but before it runs I get this error:

--------------------Configuration: <Default>--------------------
java.lang.NoSuchMethodError: main
Exception in thread "main"
Process completed.

???