See InputSteram.read(byte[]) for reading bytes at a time. Example code: try { File file = new File(“myFile”); FileInputStream is = new FileInputStream(file); byte[] chunk = new byte[1024]; int chunkLen = 0; while ((chunkLen = is.read(chunk)) != -1) { // your code.. } } catch (FileNotFoundException fnfE) { // file not found, handle case } catch … Read more
Hi the problem is in FileDownloader class urlConnection.setRequestMethod(“GET”); urlConnection.setDoOutput(true); You need to remove the above two lines and everything will work fine. Please mark the question as answered if it is working as expected. Latest solution for the same problem is updated Android PDF Write / Read using Android 9 (API level 28) Attaching the … Read more
You could use the toString method of the android Uri in combination of the String based constructor of the Java URI. android.net.Uri auri = new android.net.Uri(what ever); java.net.URI juri = new java.net.URI(auri.toString()); Android URI | Java URI
In FileInputStream, the method read() reads a single byte. From the source code: /** * Reads a byte of data from this input stream. This method blocks * if no input is yet available. * * @return the next byte of data, or <code>-1</code> if the end of the * file is reached. * @exception … Read more
You can’t insert data into a file… file systems (in general) simply don’t support such an operation. Typically you’d open one file for reading and another for writing, copy the first part of the file from one stream to the other, write the extra part, then copy the second part of the file. If you’re … Read more
An InputStream is the raw method of getting information from a resource. It grabs the data byte by byte without performing any kind of translation. If you are reading image data, or any binary file, this is the stream to use. A Reader is designed for character streams. If the information you are reading is … Read more
readObject() doesn’t return null at EOF. You could catch the EOFException and interpret it as EOF, but this would fail to detect distinguish a normal EOF from a file that has been truncated. A better approach would be to use some meta-data. That is, rather than asking the ObjectInput how many objects are in the … Read more
The java.io.File and consorts acts on the local disk file system. The root cause of your problem is that relative paths in java.io are dependent on the current working directory. I.e. the directory from which the JVM (in your case: the webserver’s one) is started. This may for example be C:\Tomcat\bin or something entirely different, … Read more