Hi there,
does anyone have any idea why the validation fails?
regards.
package com.codegym.task.task22.task2207;
import java.io.BufferedReader;
import java.io.FileReader;
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<>();
private static String fileName = null;
public static void main(String[] args) {
ArrayList<String> words = new ArrayList<>();
try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))){
fileName = br.readLine();
} catch (Exception e) {e.printStackTrace();}
try (BufferedReader br = new BufferedReader(new FileReader(fileName))){
while (br.ready()) {
words.addAll(Arrays.asList(br.readLine().split("\\s")));
}
} catch (Exception e) {e.printStackTrace();}
while (words.size() > 1) {
String item = words.get(0);
StringBuilder sb = new StringBuilder(item).reverse();
if (words.contains(sb.toString())) {
result.add(new Pair(item,sb.toString()));
words.remove(sb.toString());
}
words.remove(item);
}
for (Pair pair : result) System.out.println(pair);
}
public static class Pair {
String first;
String second;
public Pair() {
}
public Pair(String first, String second) {
this.first = first;
this.second = 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;
}
}
}