понятия не имею что не так с кодом, вроде все работает как надо.
изменил код на
if(string.matches(".*\\b"+s+"\\b.*")&&!list.contains(s)&&!str[i].matches(" *")){
if(str[i].equals(s)){
if(string.matches(".*\\b"+s+"\\b.*\\b"+s+"\\b.*")){
result.add(new Pair(str[i].trim(),s.trim()));
list.add(str[i]);
list.add(s);
}
else
list.add(s);
}else{
result.add(new Pair(str[i].trim(),s.trim()));
list.add(str[i]);
list.add(s);
}package com.javarush.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;
/*
Обращенные слова
*/
public class Solution {
public static List<Pair> result = new LinkedList<>();
public static void main(String[] args) {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
StringBuilder sb = new StringBuilder();
try {
FileReader file = new FileReader(reader.readLine());
char[] ch = new char[64000];
while(file.ready()){
int i = file.read(ch);
sb.append(ch,0,i);
ch = new char[128];
}
reader.close();
file.close();
}
catch(IOException e){
e.printStackTrace();
}
String string = sb.toString().replaceAll("\r\n|\n"," ");
String[] str = string.split(" ");
sb.setLength(0);
ArrayList<String> list= new ArrayList<String>();
for(int i = 0; i < str.length; i++){
sb.append(str[i]);
sb.reverse();
String s = sb.toString();
if(string.matches(".*\\b"+s+"\\b.*")&&!list.contains(s)&&!str[i].matches(" *")){
result.add(new Pair(str[i].trim(),s.trim()));
list.add(str[i]);
list.add(s);
}
sb.setLength(0);
}
for(Pair pr : result){
System.out.println(pr.first + " " + pr.second);
}
/*
for(String stri : b) {
String l = s.append(stri).reverse().toString();
for (String h : b) {
if(l.equals(h)){
result.add(new Pair(stri.trim(),h.trim()));
for(int k = 0; k < b.length; k++){
if(h.equals(b[k])){
b[k] = null;
}
}
}
}
s.setLength(0);
}
for(Pair pr:result){
System.out.println(pr.first + " " + pr.second);
}
*/
}
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 != null ? second :
second == null && first != null ? first :
first.compareTo(second) < 0 ? first + " " + second : second + " " + first;
}
}
}