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package com.javarush.task.task21.task2107;
import java.util.LinkedHashMap;
import java.util.Map;
/*
Глубокое клонирование карты
*/
public class Solution implements Cloneable {
public static void main(String[] args) {
Solution solution = new Solution();
solution.users.put("Hubert", new User(172, "Hubert"));
solution.users.put("Zapp", new User(41, "Zapp"));
Solution clone = null;
try {
clone = (Solution) solution.clone();
System.out.println(solution);
System.out.println(clone);
System.out.println(solution.users);
System.out.println(clone.users);
} catch (CloneNotSupportedException e) {
e.printStackTrace(System.err);
}
}
public Object clone() throws CloneNotSupportedException {
Solution sol = (Solution) super.clone();
Map<String, User> newUsers = new LinkedHashMap<>();
for (Map.Entry<String, User> entry : users.entrySet()) {
newUsers.put(entry.getKey(), (User) entry.getValue().clone());
}
return sol;
}
protected Map<String, User> users = new LinkedHashMap();
public static class User implements Cloneable {
int age;
String name;
public User(int age, String name) {
this.age = age;
this.name = name;
}
public Object clone() throws CloneNotSupportedException {
User user = (User) super.clone();
return user;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (this != null || this.getClass() == o.getClass()) return true;
User user = (User) o;
if (age != 0 ? age != user.age : age != 0) return false;
return name != null ? name.equals(user.name) : name.equals(null);
}
@Override
public int hashCode() {
int result = 2;
result = 31 * result + (age != 0 ? age : 0);
result = 31 * result + (name != null ? name.hashCode() : 0);
return result;
}
}
}