Построить решето Эратосфена заданной длины

public static void main(String args[]) {
        int answer1[] = new int[] {};
        System.out.println(Arrays.equals(eratosthenes(0), answer1));
 
        int answer2[] = new int[] {1};
        System.out.println(Arrays.equals(eratosthenes(1), answer2));
 
        int answer3[] = new int[] {1, 2, 3, 0, 5};
        System.out.println(Arrays.equals(eratosthenes(5), answer3));
 
        int answer4[] = new int[] {1, 2, 3, 0, 5, 0, 7, 0, 0, 0};
        System.out.println(Arrays.equals(eratosthenes(10), answer4));
 
        int answer5[] = new int[] {1, 2, 3, 0, 5, 0, 7, 0, 0, 0, 11, 0, 13, 0, 0};
        System.out.println(Arrays.equals(eratosthenes(15), answer5));
 
        int answer6[] = new int[] {1, 2, 3, 0, 5, 0, 7, 0, 0, 0, 11, 0, 13, 0, 0, 0, 17, 0, 19, 0};
        System.out.println(Arrays.equals(eratosthenes(20), answer6));
 
        int answer7[] = new int[] {1, 2, 3, 0, 5, 0, 7, 0, 0, 0, 11, 0, 13, 0, 0, 0, 17, 0, 19, 0, 0, 0, 23, 0, 0, 0, 0, 0, 29, 0, 31, 0, 0, 0, 0, 0, 37, 0, 0, 0, 41, 0, 43, 0, 0, 0, 47, 0, 0, 0, 0, 0, 53, 0, 0, 0, 0, 0, 59, 0, 61, 0, 0, 0, 0, 0, 67, 0, 0, 0, 71, 0, 73, 0, 0, 0, 0, 0, 79, 0, 0, 0, 83, 0, 0, 0, 0, 0, 89, 0, 0, 0, 0, 0, 0, 0, 97, 0, 0, 0};
        System.out.println(Arrays.equals(eratosthenes(100), answer7));
 
             System.out.println("Finish");
    }
 
    static int[] eratosthenes(int n) {
        return new int[0];
    }