Plus Minus in java

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.

Input Format

The first line contains an integer, N, the size of the array. The second line contains N space-separated integers of the array.

Output Format

Print the following 3 lines, each to decimals (use double in java):

proportion of positive values

proportion of negative values

proportion of zeros

Sample Input

6
-4 3 -9 -5 4 1   

Sample Output

0.5
0.5
0

Explanation

There are 3 positive numbers, 3 negative numbers, and no zero in the array.

The proportions of occurrence are positive: 0.5, negative: 0.5 and zeros: 0.

In case you are solving in C++, setprecision to 3

Solution:–

import java.util.*;
import java.lang.*;
import java.io.*;

public class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		//your code here
      Scanner scanner = new Scanner(System.in);
      int input = scanner.nextInt();
      int arr[] = new int[input];
      float positiveCount=0,negativeCount=0,zeroCount=0;

      for(int i=0;i<input;i++)
        {
          int x = scanner.nextInt();
          arr[i]=x;
        }

      for(int i=0;i<input;i++)
        {
          if(arr[i]>0)
          {
            positiveCount++;
          }
          else if(arr[i]<0)
          {
            negativeCount++;
          }
          else{
            zeroCount++;
          }
        }

      System.out.println((double)positiveCount/input);
      System.out.println((double)negativeCount/input);
      System.out.println(zeroCount/input);
      
	}
}