The combination mode of design pattern in Java23

 PackageCom.bjsxt.composite;/*** Abstract Components *@authorAdministrator **/ Public InterfaceComponent {voidoperation ();}//Leaf ComponentsInterfaceLeafextendsComponent {}//Container ComponentsInterfaceCompositeextendsComponent {voidAdd (Component c); voidRemove (Component c); Component Getchild (intindex);}

Component Abstract Components

 PackageCom.bjsxt.composite;Importjava.util.ArrayList;Importjava.util.List;//Abstract Construction Public InterfaceAbstractfile {voidKillvirus ();//Antivirus}classImageFileImplementsAbstractfile {PrivateString name;  PublicImageFile (String name) {Super();  This. Name =name; } @Override Public voidKillvirus () {System.out.println ("---image file:" +name+ ", for Avira! "); }    }classTextfileImplementsAbstractfile {PrivateString name;  Publictextfile (String name) {Super();  This. Name =name; } @Override Public voidKillvirus () {System.out.println ("---text file:" +name+ ", for Avira! "); }}classVideofileImplementsAbstractfile {PrivateString name;  Publicvideofile (String name) {Super();  This. Name =name; } @Override Public voidKillvirus () {System.out.println ("---video file:" +name+ ", for Avira! "); }}classFolderImplementsAbstractfile {PrivateString name; //defines a container to hold sub-nodes under the construction of this container    Privatelist<abstractfile> list =NewArraylist<abstractfile>();  PublicFolder (String name) {Super();  This. Name =name; }     Public voidAdd (abstractfile file) {list.add (file); }     Public voidRemove (abstractfile file) {list.remove (file); }     PublicAbstractfile Getchild (intindex) {        returnList.get (index); } @Override Public voidKillvirus () {System.out.println ("---folder:" +name+ ", for Avira");  for(Abstractfile file:list) {File.killvirus (); }            }    }

Abstractfile Example

 PackageCom.bjsxt.composite; Public classClient { Public Static voidMain (string[] args) {abstractfile f2,f3,f4,f5; Folder F1=NewFolder ("My Favorites"); F2=NewImageFile ("Old high head like. jpg"); F3=NewTextfile ("Hello.txt");        F1.add (F2);                F1.add (F3); Folder F11=NewFolder ("movie"); F4=NewVideofile ("The laughter is proud of the lake" AVI.); F5=NewVideofile ("The Statue of God, avi.");        F11.add (F4);        F11.add (F5);                F1.add (F11); //F2.killvirus ();F1.killvirus (); }}

Client Test Class

The combination mode of design pattern in Java23