Copy/Move files

[Will Richardson]

Ok.. Another mobile Java question.

I want to know how to copy a file from one place to another on my phone with my java app (It will be used to randomly change the background..)

I have a snippet of code which creates a file on my "E:" drive

public void createFile() {
		   try {
		      FileConnection filecon = (FileConnection)
		         Connector.openInputStream("file:///E:/mynewfile.txt");
		      // Always check whether the file or directory exists.
		      // Create the file if it doesn't exist.
		      if(!filecon.exists()) {
		         filecon.create();
		      }
		      filecon.close();
		   } catch(IOException ioe) {
			   ioe.printStackTrace();
		   }
		}

If this met an inputstream of some kind.. I think it would function..

[Gopinath Karyadath]

    public boolean writeFile(String s) {

        byte[] data = s.getBytes();
       
        file = System.getProperty("fileconn.dir.photos") + "myfile.txt";  //;append=true";
        FileConnection c = null;
        java.io.OutputStream os = null;
        try {
            c = (FileConnection) Connector.open(file, Connector.READ_WRITE);
            if (c.exists()) {
                c.delete();
            }
            c.create();
            os = c.openOutputStream();
            os.write(data);
            os.flush();
            os.close();
            c.close();
            data = null;
            s = null;
            return true;
        } catch (Exception e) {
            data = null;
            s = null;
            System.gc();
            return false;
        } finally {
            try {
                if (os != null) {
                    os.close();
                }
                if (c != null) {
                    c.close();
                }
            } catch (Exception ex) {
                ex.printStackTrace();
            }

            data = null;
            s = null;

        }




    }

[Will Richardson]

I am afraid to say that your code does not function; It creates an unreadable file at the destination.

I am willing to say my code is incorrect, so it is included here: (there are 104 image files in the folder "Wallpapers")

	protected void startApp() throws MIDletStateChangeException {
		// TODO Auto-generated method stub
		Random randomGenerator = new Random();
		int randomInt = randomGenerator.nextInt(104);
		String str=Integer.toString(randomInt);
		String dir = "file:///E:/Photos/Wallpapers/"+str+".jpg";
		writeFile(dir);
		notifyDestroyed();
		return;
	}

	public boolean writeFile(String s) {
		byte[] data = s.getBytes();
		String file = "file:///C:/Settings/UserWP_1.jpg";// System.getProperty("fileconn.dir.photos")
															// + "myfile.txt";
															// // ;append=true";
		FileConnection c = null;
		java.io.OutputStream os = null;
		try {
			c = (FileConnection) Connector.open(file, Connector.READ_WRITE);
			if (c.exists()) {
				c.delete();
			}
			c.create();
			os = c.openOutputStream();
			os.write(data);
			os.flush();
			os.close();
			c.close();
			data = null;
			s = null;
			return true;
		} catch (Exception e) {
			data = null;
			s = null;
			System.gc();
			return false;
		} finally {
			try {
				if (os != null) {
					os.close();
				}
				if (c != null) {
					c.close();
				}
			} catch (Exception ex) {
				ex.printStackTrace();
			}

			data = null;
			s = null;

		}
	}