Помогите!!!!
package com.javarush.task.task22.task2207;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.*;
import java.util.stream.Collectors;
/*
Обращенные слова
*/
public class Solution {
public static List<Pair> result = new LinkedList<>();
public static void main(String[] args) throws IOException {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
String fileName = bufferedReader.readLine();
BufferedReader filebuffer = new BufferedReader(new InputStreamReader(new FileInputStream(fileName), StandardCharsets.UTF_8));
ArrayList<String> arrayList = new ArrayList<>();
while (filebuffer.ready()){
String ss = filebuffer.readLine();
if (ss!=null) {
String[] buffer = ss.split(" ");
Collections.addAll(arrayList, buffer);
}
}
for (String str :
arrayList) {
StringBuilder stringBuilder = new StringBuilder(str);
String reversing =stringBuilder.reverse().toString();
for (String string2:
arrayList) {
if (reversing.equals(string2)) {
Pair pair = new Pair();
pair.first = str;
pair.second = reversing;
result.add(pair);
}
}
}
filebuffer.close();
bufferedReader.close();
result = result.stream().distinct().collect(Collectors.toList());
int s = result.size();
for (int i = 0; i <s-1 ; i++) {
if(result.get(i).first.equals(result.get(i+1).second)){result.remove(i+1); s--;}
}
for (Pair pair:
result) {
System.out.println(pair.toString());
}
}
public static class Pair {
String first;
String second;
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Pair pair = (Pair) o;
if (first != null ? !first.equals(pair.first) : pair.first != null) return false;
return second != null ? second.equals(pair.second) : pair.second == null;
}
@Override
public int hashCode() {
int result = first != null ? first.hashCode() : 0;
result = 31 * result + (second != null ? second.hashCode() : 0);
return result;
}
@Override
public String toString() {
return first == null && second == null ? "" :
first == null && second != null ? second :
second == null && first != null ? first :
first.compareTo(second) < 0 ? first + " " + second : second + " " + first;
}
}
}