Я уже вообще не понимаю, что к чему....
Подскажите, наставьте на путь истинный)))
package com.javarush.task.task22.task2207;
import java.io.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
/*
Обращенные слова
*/
public class Solution {
public static List<Pair> result = new LinkedList<>();
public static void main(String[] args) throws IOException {
BufferedReader re = new BufferedReader(new InputStreamReader(System.in));
BufferedReader reader = new BufferedReader(new FileReader(re.readLine()));
re.close();
ArrayList<StringBuilder> list = new ArrayList();
while (reader.ready()) {
String[] line=reader.readLine().trim().split(" ");
for (int i=0;i<line.length;i++){
list.add(new StringBuilder(line[i]));
}
}
//C:\test.txt
reader.close();
ArrayList <StringBuilder> listcopy=new ArrayList<>();
listcopy.addAll(list);
for (int i=0;i<listcopy.size();i++){
for (int j=0;j<list.size();j++){
if(listcopy.get(i).reverse().equals(list.get(j))){
Pair pair=new Pair();
pair.first=listcopy.get(i).toString();
pair.second=listcopy.get(j).reverse().toString();
result.add(pair);
list.remove(i);
list.remove(j);
}
}
}
for (Pair pair:result){
System.out.println( pair.toString());
}
}
public static class Pair {
String first;
String second;
public Pair() {
}
@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 :
second == null ? first :
first.compareTo(second) < 0 ? first + " " + second : second + " " + first;
}
}
}