Why do I get message "The program ran too long and was closed!" ?!
package pl.codegym.task.task18.task1805;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
/*
Sortowanie bajtów
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String name = reader.readLine();
reader.close();
ArrayList<Integer> array = new ArrayList<>();
FileInputStream fileInputStream = new FileInputStream(name);
int temp = fileInputStream.read();
while (fileInputStream.available() > 0) {
if (!(array.contains(temp))) {
array.add(temp);
} else {
}
}
fileInputStream.close();
Collections.sort(array);
for (int i = 0; i < array.size(); i++) {
System.out.print(array.get(i) + " ");
}
}
}