package Q7_05_Online_Book_Reader;
import java.util.HashMap;
public class UserManager {
private HashMap<Integer, User> users;
public User addUser(int id, String details, int accountType) {
if (users.containsKey(id)) {
return null;
}
User user = new User(id, details, accountType);
users.put(id, user);
return user;
}
public boolean remove(User u) {
return remove(u.getID());
}
public boolean remove(int id) {
if (!users.containsKey(id)) {
return false;
}
users.remove(id);
return true;
}
public User find(int id){
return users.get(id);
}
}