An example of Reflection laptop USB Interface Example

Notebook class:

Package Cn.fanse;public class Notebook {public void run () {System.out.println (' book Run ');} public void Useusb (USB usb) {Usb.open (); Usb.close ();}  }

USB Interface:

Package Cn.fanse;public interface USB {public void open ();     public void close ();

USB Interface for Mouse:

Package Cn.fanse;public class Mousebyusb implements usb{@Overridepublic Void Open () {System.out.println ("mouse Run");} @Overridepublic void Close () {System.out.println ("mouse Close");}   }

Keyboard for USB:

Package Cn.fanse;public class Keybyusb implements usb{@Overridepublic Void Open () {System.out.println ("key Run");} @Overridepublic void Close () {System.out.println ("key Close");}             }

Main function class:

Package Cn.fanse;import Java.io.file;import Java.io.fileinputstream;import java.io.ioexception;import Java.util.properties;public class Notbookdemmo {/** * @param args * @throws Exception  */public static void Main (String [] args) throws Exception {  Notebook book = new Notebook ();  Book.run ();  File config = new file ("Usb.properties");  if (!config.exists ())  {  config.createnewfile ();  }  FileInputStream fis = new FileInputStream (config);    Properties Prop =new Properties ();  Prop.load (FIS);    for (int x =1;x<=prop.size (); x + +)  {String className = prop.getproperty ("USB" +x); Class Clazz=class.forname (className); USB USB = (USB) clazz.newinstance (); BOOK.USEUSB (USB);}}}  

Configuration file:

Write the following in the configuration file usb.properties:

Usb1=cn.fanse.mousebyusb
Usb2=cn.fanse.keybyusb

Results:

Book Run
Mouse Run
Mouse Close
Key Run
Key Close



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An example of Reflection laptop USB Interface Example