Не нравится ему, что почему-то users пустой после чтения
package com.javarush.task.task20.task2002;
import java.io.*;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
/*
Читаем и пишем в файл: JavaRush
*/
public class Solution {
public static void main(String[] args) {
//you can find your_file_name.tmp in your TMP directory or fix outputStream/inputStream according to your real file location
//вы можете найти your_file_name.tmp в папке TMP или исправьте outputStream/inputStream в соответствии с путем к вашему реальному файлу
try {
File your_file_name = File.createTempFile("your_file_name", null);
OutputStream outputStream = new FileOutputStream(your_file_name);
InputStream inputStream = new FileInputStream(your_file_name);
JavaRush javaRush = new JavaRush();
//initialize users field for the javaRush object here - инициализируйте поле users для объекта javaRush тут
javaRush.save(outputStream);
outputStream.flush();
JavaRush loadedObject = new JavaRush();
loadedObject.load(inputStream);
//check here that javaRush object equals to loadedObject object - проверьте тут, что javaRush и loadedObject равны
outputStream.close();
inputStream.close();
} catch (IOException e) {
//e.printStackTrace();
System.out.println("Oops, something wrong with my file");
} catch (Exception e) {
//e.printStackTrace();
System.out.println("Oops, something wrong with save/load method");
}
}
public static class JavaRush {
public List<User> users = new ArrayList<>();
public void save(OutputStream outputStream) throws Exception {
BufferedWriter br = new BufferedWriter(new OutputStreamWriter(outputStream));
if(users != null) {
for (User u : users) {
br.write(u.getFirstName() == null ? "null" : u.getFirstName());
br.write(u.getLastName() == null ? "null" : u.getLastName());
br.write(String.valueOf(u.getBirthDate()) == null ? "null" : String.valueOf(u.getBirthDate()));
br.write(String.valueOf(u.getBirthDate()) == null ? "null" : String.valueOf(u.getBirthDate()));
}
}
br.close();
}
public void load(InputStream inputStream) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
User u = new User();
if(users == null){
u.setFirstName(br.readLine());
u.setLastName(br.readLine());
String c = br.readLine();
if(c.equals("Ukraine")) u.setCountry(User.Country.UKRAINE);
if(c.equals("Russia")) u.setCountry(User.Country.RUSSIA);
if(c.equals("Other")) u.setCountry(User.Country.OTHER);
u.setBirthDate(new Date(Long.parseLong(br.readLine())));
users.add(u);
}
br.close();
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
JavaRush javaRush = (JavaRush) o;
return users != null ? users.equals(javaRush.users) : javaRush.users == null;
}
@Override
public int hashCode() {
return users != null ? users.hashCode() : 0;
}
}
}