gistfile1.java

public class Main 
{
    public static List<Integer> primes = new ArrayList<Integer>();
	
    public static void main(String[] args)
    {  	
    	findPrimes(100);
    	
    	for(int prime : primes)
    	    System.out.println(prime);
    }

    public static void findPrimes(int maxNumber) 
    {	
    	if (maxNumber >= 2)
    	{
    	    primes.add(2);
    	    int currentNumber = 3;
    	
	    while (currentNumber <= maxNumber)
	    {
	   	boolean isPrime = true;
	    	for (int prime : primes)
	    	{
	    	    if (currentNumber % prime == 0)
	    	    {
	    	        isPrime = false;
	    		break;
	    	    }
	    	}
	    		
	    	if (isPrime == true)
	    	    primes.add(currentNumber);
	
		currentNumber += 2;
	    }
    	}
    }
}