я вообще всё не так делаю или как то так можно?
package com.javarush.task.task18.task1803;
/*
Самые частые байты
*/
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String fileName = reader.readLine();
FileInputStream stream = new FileInputStream(fileName);
long s = stream.read();
List list = new ArrayList();
while (stream.available()>0) {
list.add(s);
}
stream.close();
long num=0;
int max = 0;
for (int i=0; i<list.size(); i++){
int count = Collections.frequency(list,s);
if (count>max){
max=count;
num=(long) list.get(i);}
System.out.print( num+" ");
}
}
}