/**

* Proxy pattern : Proxy pattern is structural pattern. We use proxy when we don't want to expose real object and provide proxy object to deal with.

* Many times when you are dealing with remote servers and do lookup from the naming server it provides you proxy object from remote server not actual one.

* Even in hibernate if remember we have concept of lazy loading where whenever we load data from db we get proxy object of

* database and return it however if we get it then only it gets loaded from database. This is one of the best example of proxy object.

*

* Another example can be Spring AOP where AOP objects are proxy and treated on advice aspects.

*

* Different type of proxies are :

* 1. Remote proxy : When you are dealing with remote system , you require remote object to interact with the system. Usually in past it get used in ejb where beans gets created in container

* and client gets object using JNDI system.

* 2. Virtual proxy :Delay the object creation until it is required, as explained hibernate uses this.

* 3. Protection proxy : this proxy is used when we are dealing with security system where before invoking system implementation we want to check access.

* 4. Snart proxy - Perform some additional steps before accessing object.

*

* Proxy pattern has mainly three components :

* 1. A common interface

* 2. Real Class

* 3. Proxy class - this uses the realclass and it is proxy of real class.

*

* https://www.javadevjournal.com/java-design-patterns/proxy-design-pattern/

* Example consider as Bank Account and ATM where to operate your bank account you have ATM which is proxy of doing process in bank account.

*

*/

public class Main {

public static void main(String[] args) {

ATM atm = new ATM();

atm.withdraw();

}

}