prima array

import java.util.Scanner;

public class Prima {

    public static void main(String args[]) {
        int deret, a = 2, j, i = 0;
        boolean cek;
        Scanner input = new Scanner(System.in);
        System.out.print("Masukkan berapa deret Prima? ");
        deret = input.nextInt();
        tampilkanArray(getPrima(deret));
    }

    public static int[] getPrima(int deret) {
        int[] prima = new int[deret];
        int i = 0, a = 1;

        while (i < deret) {
            int j, c = 0;
            for (j = 1; j <= a; j++) {
                if (a % j == 0) {
                    c++;
                }
                if (c > 2) {
                    break;
                }
            }
            if (c == 2) {
                prima[i] = a;
                i++;
            }
            a++;
        }

        return prima;
    }

    public static void tampilkanArray(int[] array) {
        for (int i = 0; i < array.length; i++) {
            System.out.print(array[i]);
            if (i != array.length - 1) {
                System.out.print(",");
            }
        }
        System.out.println("");
    }
}