ioexception

问题 This question already has answers here : Exception 'open failed: EACCES (Permission denied)' on Android (31 answers) Closed 5 years ago . For some strange reason, am constantly facing an issue with different types of Android devices, for saving the captured images on the device storage. Here, is the detailed error log, of what, actually am getting. java.io.IOException: open failed: EACCES (Permission denied) at java.io.File.createNewFile(File.java:940) at com.parkhya.pick_for_shareAflash

问题 FINAL UPDATE It was our firmware the whole time. Embarrassing to a degree, but I'm happy we can move forward and I can put learning Java off for another day. My answer is below. UPDATE So I have more or less given up on this. I think it is a bug that goes down to the API, but I have neither the time, resources nor skill-set to get to the bottom of it. I think there exists some hardware to whom Windows just gives the middle finger. I have downloaded Eclipse, switched to Java and will try to

问题 java.io.IOException seems to be the most common type of exception, coincidentally, it seems to also be the most ambiguous. I keep seeing the throws IOException whenever writing with sockets, files, &c. I've never actually had one fired on me, however, so I'm wondering what it is that is supposed to fire the exception. The documentation isn't very helpful in explaining what's going on: Signals that an I/O exception of some sort has occurred. This class is the general class of exceptions

问题 I am newbie to android and this is my first project on android. I am struggling with "authentication" problem for more than a day. I tried several options but none of them worked. Basically, I want to call a REST API and get response. I am sure that there is no problem in API as I use the same one in another iOS application. I pass authorization header but still authentication no found message is shown. I found few question on stackoverflow related to this, but some of them did not work and

问题 I am newbie to android and this is my first project on android. I am struggling with "authentication" problem for more than a day. I tried several options but none of them worked. Basically, I want to call a REST API and get response. I am sure that there is no problem in API as I use the same one in another iOS application. I pass authorization header but still authentication no found message is shown. I found few question on stackoverflow related to this, but some of them did not work and

问题 try { //String location = dir1.getCanonicalPath()+"\\app_yamb_test1\\mySound.au"; //displayMessage(location); AudioInputStream audio2 = AudioSystem.getAudioInputStream(getClass().getResourceAsStream("mySound.au")); Clip clip2 = AudioSystem.getClip(); clip2.open(audio2); clip2.start(); } catch (UnsupportedAudioFileException uae) { System.out.println(uae); JOptionPane.showMessageDialog(null, uae.toString()); } catch (IOException ioe) { System.out.println("Couldn't find it"); JOptionPane

问题 I have a server app and sometimes, when the client tries to connect, I get the following error: NOTE: the "couldn't get stream from client or login failed" is a text that's added by me in catch statement and the line at which it stops ( sThread : line 96 ) is : tcpClient = (TcpClient)client; clientStream = tcpClient.GetStream(); sr = new StreamReader(clientStream); sw = new StreamWriter(clientStream); // line 96: a = sr.ReadLine(); What may be causing this problem? Note that it doesn't happen

问题 I am using Aether utility library to manage deppendencies. When I try to download the transitive dependencies for a maven artifact I get a java.io.IOException: Invalid Content-Range header for partial download error. I am using almost the same code from the aether example here https://github.com/eclipse/aether-demo/blob/master/aether-demo-snippets/src/main/java/org/eclipse/aether/examples/ResolveTransitiveDependencies.java /** * Resolves the transitive (compile) dependencies of an artifact. *

问题 This question already has answers here : File being used by another process after using File.Create() (10 answers) Closed 6 years ago . My program contains one form and seven user controls. I am using MS Visual Studio 2010 C# Language. My Program: Displays all the text in the .txt file into a textbox in UserControl. My Aim: I want to check if .txt file exists. If .txt file does not exist, create it so that the user can put some data in .txt file which is then displayed in the text boxes in

问题 I'm trying to export my DB to a CSV file. I have applied the appropriate permission to the AndroidManifest.xml . I'm just wondering why I can't write/create the file in my (actual device) Nexus 5X API level 23 where the same code works in my emulator Nexus 7 API level 22. Is the permission not enough? Here's the code: private void writeCsv() { File fileDir = new File(Environment.getExternalStoragePublicDirectory( Environment.DIRECTORY_DOWNLOADS).getAbsolutePath(), File.separator + "Example");