Java Data Flow

BYTE stream

1  Packagecom.lovo.test;2 3 ImportJava.io.FileInputStream;4 Importjava.io.FileNotFoundException;5 ImportJava.io.FileOutputStream;6 Importjava.io.IOException;7 ImportJava.io.InputStream;8 ImportJava.io.OutputStream;9 Ten  Public classTestbytestream { One  A      Public Static voidMain (string[] args) { -         //TODO auto-generated Method Stub -         //1, Byte stream the         //Declaration Flow -InputStream in =NULL; -OutputStream out =NULL; -         Try { +             //Create a Stream -in =NewFileInputStream ("D:" + system.getproperty ("file.separator") + "Lileihanmeimei.mp3"); +out =NewFileOutputStream ("E:" + system.getproperty ("file.separator") + "J124.mp3"); A              at             //Operation Flow - //int b = 0; - //While ((b = In.read ())! =-1) { - //Out.write (b); - //            } -              in             byte[] B =New byte[1024]; -             intLength = 0; to              while(length = In.read (b))! =-1){ +Out.write (b,0, length); -Out.flush ();//Scour the             } *              $             Panax Notoginseng}Catch(FileNotFoundException e) { -             //TODO auto-generated Catch block the e.printstacktrace (); +}Catch(IOException e) { A             //TODO auto-generated Catch block the e.printstacktrace (); +}finally{ -             //Close the stream $             if(In! =NULL){ $                 Try { - in.close (); -}Catch(IOException e) { the                     //TODO auto-generated Catch block - e.printstacktrace ();Wuyi                 } the             } -             if(Out! =NULL){ Wu                 Try { - out.close (); About}Catch(IOException e) { $                     //TODO auto-generated Catch block - e.printstacktrace (); -                 } -             } A         } +          the     } -  $}

Character stream: The same steps as above

1  Packagecom.lovo.test;2 3 Importjava.io.FileNotFoundException;4 ImportJava.io.FileReader;5 ImportJava.io.FileWriter;6 Importjava.io.IOException;7 ImportJava.io.Reader;8 ImportJava.io.Writer;9 Ten ImportJavax.swing.JOptionPane; One  A  Public classTestcharstream { -  -      Public Static voidMain (string[] args) { the         //TODO auto-generated Method Stub -          - //String msg = joptionpane.showinputdialog ("Please enter the next sentence of the day depending on the mountain": "); - //         + //Writer w = null; - //         + //try { A //w = new FileWriter ("Poem.txt"); at //char[] B = Msg.tochararray (); - //W.write (b); - //W.flush (); - //} catch (IOException e) { - //            //TODO auto-generated Catch block - //e.printstacktrace (); in //} finally{ - //if (w! = null) { to //try { + //w.close (); - //} catch (IOException e) { the //                    //TODO auto-generated Catch block * //e.printstacktrace (); $ //                }Panax Notoginseng //            } - //        } the          +          AReader r =NULL;  the         Try { +String result = ""; -R =NewFileReader ("Poem.txt"); $             Char[] C =New Char[10]; $             intLength = 0; -              while(length = R.read (c))! =-1){ -String str =NewString (c, 0, length); theResult + =str; -             }Wuyi System.out.println (result); the              -}Catch(FileNotFoundException e) { Wu             //TODO auto-generated Catch block - e.printstacktrace (); About}Catch(IOException e) { $             //TODO auto-generated Catch block - e.printstacktrace (); -}finally{ -             if(r! =NULL){ A                 Try { + r.close (); the}Catch(IOException e) { -                     //TODO auto-generated Catch block $ e.printstacktrace (); the                 } the             } the         } the     } -}

Java Data Flow