Any suggestions?
package com.codegym.task.task18.task1817;
import java.io.FileInputStream;
import java.io.IOException;
/*
Spaces
*/
public class Solution {
public static void main(String[] args) throws IOException {
String fileName = args[0];
FileInputStream input = new FileInputStream(fileName);
double n1 = 0;
double n2 = 0;
while(input.available() > 0) {
int data = input.read();
String dataString = Integer.toString(data);
for(char x : dataString.toCharArray()) {
if(x != ' ') {
n1++;
} else {
n2++;
}
}
}
System.out.printf("%.2f", (double) n2/n1 * 100);
input.close();
}
}