How can a user download a file in client side (Google Web Toolkit)

Question

I\'m using GWT(Google Web Toolkit) to make a website. I need to show a table to the user, and let the user download the contents of the table.

On the client side, h

Answer 1

To complete the answer of number one item in the io part...

you can refer to this link

http://www.programcreek.com/2009/02/java-convert-a-file-to-byte-array-then-convert-byte-array-to-a-file/

or refer to this code

File file = new File(enter the filepath here)
FileInputStream fis = new FileInputStream(file);
                ByteArrayOutputStream bos = new ByteArrayOutputStream();
                byte[] buf = new byte[1024];
                try {
                    for (int readNum; (readNum = fis.read(buf)) != -1;) {
                        bos.write(buf, 0, readNum); //no doubt here is 0
                        //Writes len bytes from the specified byte array starting at offset off to this byte array output stream.
                        System.out.println("read " + readNum + " bytes,");
                    }
                } catch (IOException ex) {
                    System.err.println("unable to convert to bytes");
                }
                byte[] bytes = bos.toByteArray();
                outputStream.write(bytes);
                outputStream.flush();
                outputStream.close();

hope it helps!