Design Pattern 5 prototype Pattern

Use a prototype instance to specify the type of the object to be created and copy the original object to create a new object.

Public class prototypeclass implements cloneable {@ override protected object clone () {// todo auto-generated method stub prototypeclass = NULL; try {prototypeclass = (prototypeclass) super. clone ();} catch (clonenotsupportedexception e) {// todo auto-generated Catch Block E. printstacktrace ();} return prototypeclass ;}}

Advantages of the prototype:
Excellent performance:
The prototype is a copy of the memory binary stream, which has much better performance than a new one, especially in a loop.
When a large number of objects are generated, the original model can better reflect its advantages.

Escape constructor Constraints
This is both its advantage and disadvantage. The constructor will not execute it directly in the memory.

Design Pattern 5 prototype Pattern