Prime

public class PrimeNumbers {
	private boolean[] nbrType;
	private int nbr;

	public PrimeNumbers(int nbr) {
		nbrType = new boolean[nbr + 1];
		this.nbr = nbr;
		nbr = nbrType.length;
		for (int i = 0; i < nbrType.length; i++) {
			nbrType[i] = true;
		}
	}

	public void calculation() {
		for (int i = 2; i < nbr; i++) {
			if (nbrType[i]) {
				for (int k = 2; k < nbr; k++) {
					if (k * i < nbr && k * i > 0) {
						nbrType[k * i] = false;
					}
				}
			}
		}

		for (int j = 2; j < nbr; j++) {
			if (nbrType[j])
				System.out.println(j);
		}
	}

}