This document discusses the prototype pattern, which allows the creation of objects based on an existing "prototype" object, rather than based on classes. It covers how prototype pattern works, its structure, use cases and caveats. Examples of implementing prototype pattern in Java and JavaScript are provided to illustrate shallow and deep copying of objects.

1. Prototype Pattern
SW 10

2. 1. Introduction

3. Problem 1
• (?)
• 2**10 + @
• ,
• =>

4. Problem 2
•
•
•
• =>

5. 2. Prototype Pattern

6. What is Prototype Pattern?
• new
• ” ” ?
• “ ”

7. Structure of Prototype

8. 3. USE CASE & Caveat

9. Prototype Pattern in JAVA
Shape.java

10. Example (cont.d)
Square.java

11. Example (cont.d)
Circle.java

12. Example (cont.d)
ShapeCache.java

13. Example (cont.d)
PrototypePatternDemo.java (Main Program)

14. Java Clonable interface
• Clone
• Clonable
• Clone CloneNotSupport
• Thread-safe Clone lock
• array.clone !

15. Java Data Type
• : int, float, double, long, char, byte
• : , ( , )
• C, C++

16. shallow VS deep copy
• (primitive type)
•
• C++ / /
• Shallow Copy ( )
• Deep Copy

17. Shared Object
• object : Flyweight
• object 1 ? : Singleton
• / : Memento

18. Prototype Pattern in JS
•
•
• prototype

19. Prototype Pattern in JS

20. Reference
• Java
• Tutorialspoint
• Evacast PPT

21. END