import java.text.DecimalFormat;

/**
 * RatioArray
 */
public class RatioArray {

  // Given an array of integers, calculate the ratios of its elements that are
  // positive, negative, and zero. Print the decimal value of each fraction on a
  // new line with
  //
  // places after the decimal.
  //
  // Note: This challenge introduces precision problems. The test cases are scaled
  // to six decimal places, though answers with absolute error of up to
  //
  // are acceptable.
  //
  // Example
  // There are elements, two positive, two negative and one zero. Their ratios are
  // , and
  //
  // . Results are printed as:
  //
  // 0.400000
  // 0.400000
  // 0.200000
  //
  public static void main(String[] args) {
    int[] ar = { 1, 1, 0, -1, -1 };
    Ratio(ar);
  }

  private static void Ratio(int[] arr) {
    int n = arr.length;
    System.out.println("the length of the arr is: " + n);
    float pos = 0;
    float neg = 0;
    float zero = 0;
    for (int x : arr) {
      if (x > 0) {
        pos++;
      } else if (x < 0) {
        neg++;
      } else if (x == 0) {
        zero++;
      }
    }
    System.out.println("The number of positive ints in the arr is: " + pos);
    System.out.println("The number of negative ints in the arr is: " + neg);
    System.out.println("The number of zeros int the arr is: " + zero);
    double posRatio = pos / n;
    double negRatio = neg / n;
    double zeroRatio = zero / n;
    System.out.println();
    System.out.printf("The ratio of the positive number is: " + "%.6f\n", posRatio);
    System.out.printf("The ratio of the positive number is: " + "%.6f\n", negRatio);
    System.out.printf("The ratio of the positive number is: " + "%.6f\n", zeroRatio);
  }
}