gistfile1.java

static void plusMinus(int[] arr) {
        double size = arr.length;
        double positive = 0f;
        double negative = 0f;
        double zero = 0f;
        for (int i : arr) {
            if (i > 0) {
                positive++;
            } else if (i == 0) {
                zero++;
            } else {
                negative++;
            }
        }
        System.out.println(positive / size);
        System.out.println(negative / size);
        System.out.println(zero / size);
    }