Java design Pattern (16)--template method pattern for behavioral patterns

first, the concept

　　Concept

　　

UML diagram

　　

　　　Role

　　

　　　Usage Scenarios

　　In fact, we often used abstract class is the pattern to use, so basically belong to a better understanding of a pattern.

Second, practice

　　According to the above role, give the corresponding code

　Abstract templates

/*** Abstract Template * *@authorAdministrator **/ Public Abstract classAbstracttemplate {/*** Declaration and implementation of template methods*/     Public voidTemplatemethod () {//calling methods implemented by subclassesOperation1 ();        Operation2 (); //call a method that has already been implementedOperation3 (); }     Public Abstract voidOperation1 ();  Public Abstract voidOperation2 (); Private Final voidOperation3 () {//has been implemented    }}

　　Specific templates

/*** Specific Template * *@authorAdministrator **/ Public classConcretetemplateextendsabstracttemplate{@Override Public voidOperation1 () {//Basic Method Implementation} @Override Public voidOperation2 () {//Basic Method Implementation    }}

Java design Pattern (16)--template method pattern for behavioral patterns