The result list must be filled with correct pairs according to the task conditions, but I guess it does.
Where is my mistake in thinking.
Thank you for your advice, in advance.
package com.codegym.task.task22.task2207;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
/*
Inverted words
*/
public class Solution {
public static List<Pair> result = new LinkedList<>();
public static void main(String[] args) throws IOException {
BufferedReader buf = new BufferedReader(new InputStreamReader(System.in));
String fileName = buf.readLine();
buf.close();
BufferedReader fBuf = new BufferedReader(new FileReader(fileName));
StringBuilder contentSb = new StringBuilder();
while (fBuf.ready()) {
contentSb.append(fBuf.readLine());
contentSb.append(" ");
}
fBuf.close();
String content = contentSb.toString();
List<String> parts = new ArrayList<>();
parts.addAll(Arrays.asList(content.split(" ")));
try {
for (int i = 0; i < parts.size(); i++) {
String first = parts.get(i);
String second = parts.get(i + 1);
String reverse = new StringBuilder(second).reverse().toString();
if (first.equals(reverse)) {
Pair pair = new Pair();
pair.first = first;
pair.second = second;
result.add(pair);
i++;
}
}
} catch (IndexOutOfBoundsException iobe) {
// nothing
}
for (Pair pair : result) {
System.out.println(pair.first + " " + pair.second);
}
}
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;
}
}
}