I don't understand what is wrong with my code?
package pl.codegym.task.task18.task1816;
/*
ABC
*/
import java.io.FileInputStream;
import java.io.IOException;
public class Solution {
public static void main(String[] args) throws IOException {
if (args[0] == null)
{
throw new RuntimeException();
}
else
{
FileInputStream inputStream = new FileInputStream(args[0]);
int[] bytes = new int[256];
while (inputStream.available() > 0)
{
bytes[inputStream.read()] += 1;
}
int englishLetters = 0;
for (int i = 65; i < 91; i++)
{
englishLetters = englishLetters + bytes[i];
}
for (int j = 97; j < 123; j++)
{
englishLetters = englishLetters + bytes[j];
}
inputStream.close();
}
}
}