MIDlet and file system

[gracy]

I wrote a MIDlet that shows the subfolder and file of the folder you choose. It is an assignment.
and the folder and files can be opened.
But I can open and read only .txt files and for pictures, I can read only .png file.
if the MIDlet can not open .doc file and other pictures, what is the use of such kind of program?

[raj_J2ME]

if the MIDlet can not open .doc file and other pictures, what is the use of such kind of program?

How are you reading the files like png, and txt etc?

Can you share the code for reading?

[gracy]

Why?
It may be just a piece of cake for you and it may have many flaws. Anyway, here is my coding.

try {
			fileconnection=(FileConnection)Connector.open("file:///root1");  //place the file you want to read here
			InputStream is = fileconnection.openInputStream();
			StringBuffer sb = new StringBuffer();
			int chr, i = 0;
			// Read until the end of the stream 
			while ((chr = is.read()) != -1)
			sb.append((char) chr);
			//System.out.println(sb.toString());
			Alert alert=new Alert("",sb.toString(),null,AlertType.INFO);
			SecondTestFileMIDlet.secondtestfilemidlet.display.setCurrent(alert);
			
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

FileConnection connection = (FileConnection) Connector.open(
			"file:///root1/read/tree.png");
			
					InputStream iStrm = connection.openInputStream();
					Image im = null;
					ImageItem imageitem;
					
					byte imageData[]=new byte[2500];					
					ByteArrayOutputStream bStrm = new ByteArrayOutputStream();
					int ch;
					while ((ch = iStrm.read()) != -1)
					bStrm.write(ch);
					imageData = bStrm.toByteArray();
					bStrm.close();					
					im = Image.createImage(imageData, 0, imageData.length);
					imageitem=new ImageItem("",im,1,"");
					append(imageitem);