import java.util.LinkedHashMap;
import java.util.Map;
/*
Deep clone example
*/
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"));
try {
Solution 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);
}
}
@Override
public Object clone() throws CloneNotSupportedException {
Solution o = (Solution) super.clone();
//clone users
Map<String, User> newUsers = new LinkedHashMap<>();
for (String key : o.users.keySet()) {
User user = o.users.get(key);
newUsers.put(key, (User) user.clone());
}
o.users = newUsers;
return o;
}
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;
}
@Override
protected Object clone() throws CloneNotSupportedException {
return super.clone();
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
User user = (User) o;
if (age != user.age) {
return false;
}
return name != null ? name.equals(user.name) : user.name == null;
}
@Override
public int hashCode() {
int result = age;
result = 31 * result + (name != null ? name.hashCode() : 0);
return result;
}
}
}
-
MY PROJECTS
-
Recent Posts
- Java. DeepCloneExample
- Abstract Classes vs Interfaces
- SQL. NULL and logical operators
- Java. Simple Gradle Application
- Leetcode.Solved.Missing-number
- Leetcode.Solved.Intersection-of-two-arrays
- DesignPatterns.AbstractFactory
- DesignPatterns.Factory
- Leetcode.Solved.ContainsDublicate
- Leetcode.Solved.Majority-element
- Leetcode.Solved.MergeSortedArray
- Leetcode.Solved.PlusOne
- Leetcode.Solved.SingleNumber
- Leetcode.Solved.Number-of-good-pairs
- Leetcode.Solved.Two-sum
- Leetcode.Solved.Repeated-substring-pattern
- Leetcode.Solved.Concatenation-of-array
- Leetcode.Solved. Search-insert-position
- WepPackDevServer
- Git. Rev-Parse. Getting latest commit
Categories
- Aptana
- Azure
- C#
- DataSnap
- DBExpress
- Delphi
- Delphi и сети
- Delphi. Язык программирования
- ExtJS
- FastReport
- FireDAC
- FireMonkey
- GIT
- ICS
- IDE
- IIS
- Indy
- InnoSetup
- javascript
- jQuery
- JSON
- LiveBindings
- MSHTML
- MySQL
- PHP
- REST
- Ribbons
- SMS
- SQL инструкции
- SVN
- TRichView
- UniGui
- WebBroker
- WinAPI
- Windows
- Алгоритмы
- Без рубрики
- Деревья
- Ищу ответ
- Компонентостроение
- Мои компоненты
- Начальный уровень
- Обработка исключений
- Парсинг
- Потоки(Threads)
- Регулярные выражения
- Тестирование приложений