I have a List<String> of file names from a folder and a certain file name as String. I want to detect whether the file name is in the list, but need ... |
I would like to know how to efficiently implement filesystem changes in java? Say I got a file in a folder and modify that file. I would like to be notified ... |
Is there any way to detect and handle whether a Java library is correctly releasing file-handles (via "close") from within a Java program that is using said library, short of having ... |
i use follows code to get page content:
URL url=new URL("http://www.google.com.hk/intl/zh-CN/privacy.html");
BufferedReader reader = new BufferedReader(new InputStreamReader(url.openConnection().getInputStream()));
for(String line=reader.readLine();line!=null;line=reader.readLine()){
System.out.println(line);
}
reader.close();
page: http://www.google.com.hk/intl/zh-CN/privacy.html charset is "UTF-8",but my system default charset is ... |
I am listening changes to a syslog file in Java. I use the accepted answer to process new entries to the file. However, I couldnt find an efficient solution for ... |
Am looking for tools to detect Memory Leaks, File open issues in Java based applications written using Netbeans and deployed on Tomcat 6 without having to spend hours, something which can ... |
i have a text file and i have to print all values using file io system.. can you tell me how to check end of file.. thanks in advance. All methods ... |
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Hi, I'm writing a csv text file parser. The parser is fine but determining when I've reached the end of the file has proved to be a pain. Take the following code: // Get a reader for the csv file try { r = new FileReader(ipFile); // ipFile is a File object } catch (java.io.FileNotFoundException fnfe) { // error handling code ... |
I am getting all the roots from client ,I want to search a file on client machine ,I can skip A:\ & B:\ but how can I find CD_ROM root ,that also I want to skip , problem is many times CD_ROM drive is not fixed as E:\ ,F:\ or anything else ,how can I fing it .I can create object ... |
I am reading a text file, which can contain either english text, or thai text or a combination of thai and text file. I have wrote following code for reading thai chars from text file FileInputStream fis = new FileInputStream ( "/temp/TYPE1TH.txt") ; int availableBytes = fis.available(); byte bArr[] = new byte[availableBytes]; int readBytes = fis.read ( bArr ) ; fis.close(); ... |
"auto detect" a CD means something a little different. When you insert a disk and a program on it starts up, that's "auto detect". You just want to find a disk and read it. Java doesn't have a way to distinguish the CD from any of the other drives on a system (which can be had through the java.io.File listRoots() method). ... |
Hello all, I am developing a File Monitoring component. Currently, the component can detect when a File object (system file or directory) has changed in someway, by using the lastModified() method of the File object. Now, I want to extend the functionality of the component, and identify exactly what changed. I'm running into problems detecting a file that is renamed. When ... |
hi all, the code below only reads from halfway through the file, and at the end it throws an EOFException. i thought that "while (os.readObject() != null)" would prevent this, but apparently i need to use something else. can someone help? thanks. load.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { FileInputStream in = new FileInputStream("test.txt"); ObjectInputStream os = new ... |
Hello, is there a way to detect when a file is fully transmitted? The project I am working on expects to recieve a fixed number of large files a day. The app should not start processing until the last file is fully transmitted. Will the File exist() method return true for partially received files? thanks in advance Jim C |
I know I can use File file=new File("****.***"); if(file.exists()) do... else do.... but I want to use jsp include tag to detect a file is exist or not. currently, if a file (***.html) exist, then jsp include it and show up, if a file(***.html) does not exist, then jsp include nothing, and no exception. So I want to find some way, ... |
Hello, I devoloped an application and made an jar file. To configure the app there exists an config file. I placed the config file in the directory "conf". The jar file lives beside the conf directory. So I have the following files. application.jar conf/config.xml The application should always find the config file in the directory "config" which is in the same ... |
Hi everyone! I would like to make a program, which manipulates some files(writing stuff in). For that the best is, if i read characters in instead of lines. Anyone knows how i can detect if my character read in was a linebreak(OS free if possible)? My codepiece so far: int c; while( ( c = in.read( ) ) != -1 ) ... |
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Hi Does anybody know if there is a way to detect when a laptop / netbook has been connected / disconnected from AC power? (In Win XP). I'm working on a little project to use a netbook in my car with a touch screen and I'm powering the netbook from the cigarette lighter via an adapter. I want the program to ... |
Hi, We have an app which lifts files uploaded by users over FTP and processes them before loading them into a DB. Currently we ask the users to upload all their files and then once they are complete upload an empty file called CONTROL_FILE. Our code looks for this CONTROL_FILE and only starts processing once it is present. It works, but ... |
You can't. Well, not directly. Most of the reading methods from DataInputStream assume there are enough bytes available to return the data. The only differences are read(), read(byte[]), read(byte[], int, int) and readLine(). The first three return -1 when there is no data, the latter returns null. Now I said not directly. That's because all the other methods throw an EOFException ... |
The only way to determine for sure that a given file is, for example, a valid PDF file, is to try to read the entire file into a PDF parser. On Windows, the convention is that the file type is indicated by the file extension, but there are no guarantees. I can rename a Word doc to .txt, and it's still ... |
Hi there, I need to be able to determine whether a file is located on the local drives or if it's stored remotely. My first attempt was to get a list of all the drives using File.listRoots and then find out their types using FileSystemView.getFileSystemView().getSystemTypeDescription Once that done, I just needed to compare the file's absolute path and the local drives's ... |
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Let me explain. Suppose I have a text file, but don't know its encoding. I check the BOM, it's not found. Is there any way to determine what encoding it is? It could be a UTF-8 or UTF-16 file that does not contain BOM. I just need to find out some way to determine the encoding, Thanks in advance for your ... |
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Hello, Thank you for taking time to read this. I am needing to know the best way to go about this. On one end, I have an RTP client sending the RTP server on the other end a streaming AU sound file. However, I need to be able to measure it somehow, so that I can determine which number was pressed ... |