My code seems to work but the last condition is not verifying. Thx in advance!
package com.codegym.task.task22.task2207;
import java.util.LinkedList;
import java.util.*;
import java.io.*;
/*
Inverted words
*/
public class Solution {
public static List<Pair> result = new LinkedList<>();
public static void main(String[] args) throws IOException{
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
BufferedReader fileReader = new BufferedReader(new FileReader(reader.readLine()));
StringBuilder sb = new StringBuilder();
while(fileReader.ready())
sb.append(fileReader.readLine()+" ");
fileReader.close();
String str = sb.toString();
String[] split = str.split(" ");
for(int i = 0; i<split.length; i++){
for(int j=i; j<split.length; j++){
sb=new StringBuilder(split[j]);
String s = sb.reverse().toString();
if(i==j){
}
else if (split[i].equals(s)){
Pair var = new Pair();
var.first = split[i];
var.second = split[j];
if(result.contains(var)){
}
else
result.add(var);
}
}
}
for(Pair p : result)
System.out.println(p.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 :
second == null ? first :
first.compareTo(second) < 0 ? first + " " + second : second + " " + first;
}
}
}