Java fourth time job

 PackageFuzhi;ImportJava.io.FileInputStream;ImportJava.io.FileOutputStream;Importjava.io.IOException; Public classCopyFile { Public Static voidMain (string[] args) {//TODO auto-generated Method StubCOPYMP3 cy =NewCopyMp3 ();    Cy.copy (); }    }classcopymp3{ Public voidCopyMp3 () {}voidcopy () {LongStartTime = System.currenttimemillis ();//Get current Time        Try{FileInputStream fis=NewFileInputStream ("Src/a.mp3"); FileOutputStream Fos=NewFileOutputStream ("Src/temp.mp3"); //int read = Fis.read ();            byte[] bt =New byte[4096]; intn = 0;  while( -1!= (n=Fis.read (BT))) {//Fos.write (read); //read = Fis.read ();Fos.write (BT, 0, N);            } fis.close ();        Fos.close (); } Catch(IOException e) {e.printstacktrace (); }                        LongEndTime =System.currenttimemillis (); System.out.println ("Program Run Time:" + (Endtime-starttime) + "MS"); }}

Java fourth time job