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I am using windows xp and nio. The application locks the file while it is running and unlocks after it exits unless it terminates because of some exception. I delete the file that is locked but the next time I start the application I get an OverlappingFileLockException. I have changed the name of the lock file and changed the directory. It ... |
i want to delete lines from a file after reading the line. the next time i read the file i should find a unread line as the 1st line of the file. how do i do tat? this is very similar to delete from table name query in sql. but i have to do this with java and txt files. how ... |
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thanks all.. the problem is diagnosed further.. MS Vista does not let a user program to delete any file from 'windows' or 'program files' directories.. Even when the file is deleted manually thru explorer a confirmation is taken from the administrator.. even when he is logged in.. i for now have opted to install and use my program in Vista outside ... |
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Hi guys, I am facing a problem while deleting a file. I am not able to delete a file without calling System.gc(). I am flushing and closing the outputstream as follows: foutStream.flush(); foutStream.close(); foutStream=null; Even after doing this, i am not able to delete that file. It is working only after i call System.gc() after these statements. Is it possible to ... |
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Hi, basically, i can delete a data from orginal file and copy rest of the data to tempfile but then i want to delete orginal file and rename tempfile to orginal file...but i can't do it....it creates the tempfile with data copied but it does not delete the orginal file and neither renames tempfile to orginal file.... this is the code ... |
Dear All, We have one server (FTP). One drive of which stores scanned documents. Users usually upload documents (.JPG files). Currently that drive is of about 27 GB containing more that 1,50,000 files. We have to keep data of 45 days only and have to remove other files regularly. Currently we use the AWK like utility for the same. It has ... |
Hi everybody, I have the following code inside a Java program: --- if (fileToDelete != null) { delOk = fileToDelete.delete(); if (!delOk) { System.out.ptrinltn("Error deleting file " + fileToDelete + "."); } } --- When I run it on a Unix system the deletion is wrong, but on another it works. I'm running the program as root and the file permissions ... |
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Hi, I am facing a wierd problem here, my requirement is to FTP the file to another server and then delete it from the directory if the FTP is successful. Here is my code. FTPClient ftp = new FTPClient(); ftp.connect("IP_ADDRESS_OF_FTP_SERVER"); ftp.login("userId","password"); int ftpReply = ftp.getReplyCode(); if(FTPReply.isPositiveCompletion(ftpReply)){ boolean deleteSuccessful ; sourceFile = "C:\\FILEDELETE ABCD123455.csv"; inputStream = new FileInputStream(sourceFile); ftpSuccessful = ftp.storeFile(completeGDGName,inputStream); inputStream.close(); ... |
Hi, As part of my requirement i'm taking two input text files and creating a final text file .in between i'm doing some manipulations. Now i want to delete the intermediate files . I tried with the following code. public static void main(String args[]){ File file= new File("D:\TestWorkspace\EDSFGenericFormatter\input"); deleteFile(file); } public static void deleteFile(File file) { if(file.isDirectory()) { File afile[] = ... |
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1.I am able to delete the file while my code runs as standalone.. But when i integrate it to my application,it fails to delete.. I think the problem may be that the file object is held.. But even when i put that delete after the end of the process,i m not able to delete.. Is there any way to delete? 2.How ... |
I have a problem with deleting files using Java 1.6. I have read all the forums on this problem and I tried all the suggestions but the problem is still there. In my program I am moving a file to another directory and then deleting the old file. After running my program the file is moved but the old one is ... |
The aim is simple, first make a copy of specified file, then delete the old file. I use FileInputStream and FileOutputStream to do the copy job. ... FileInputStream fis = new FileInputStream(oldFile); FileOutputStream fos = new FileOutputStream(newFile); // do copy ... After close these 2 stream, do delete. like: fis.close(); fos.close(); oldFile.delete(); Here I have a trouble. Sometimes I cannot delete ... |
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Check to see if the file is being held by any other application in any way? I know that on my Windows XP PC at work, I can not manually delete folders after I create them and place something into it and then delete something out of it - for some reason Windows thinks it's still in use even though nothing ... |
something's probably keeping the file open. you're on windows, aren't you? have you got windows explorer open on the directory to watch if it deletes or something? that can keep a lock on the file, so you can't delete it. make sure any streams you opened on the file are closed. if all else fails try calling System.gc() before deleting the ... |
System.out.println("File exits: " + shipmentXMLFile.exists()); The funny thing is that when the application is run on desktop, it returns true and false while on the mobile, it returns "false" and "true". Can somebody please give me some insight on what the problem might be? Your help would be greatly appreciated! Thanks a lot! |
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I am writing this application which splits one big file into ten and go from there. At the end of application, I am trying to delete the temp files. Quite strangely, I can delete 8 out of 10 files, but for some reason temp file 2 and temp file 3 are never deleted. All these temp files are created in a ... |
No, it is write protected. I can try to delete it with Windows Explorer and I get the write protected error. No other programs access it except the HTTP server of the application server and the Java program (Servlet) that uploads it. I am sure that it's not the Java program, because I have duplicated the program by just copying the ... |
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almost certainly something is still using the file. are you closing your FileOutputStream after using it? that's the most common cause of this if you're absolutely certain that nothing else is using the file, try calling System.gc() just before deleting the file. there is a bug in certain windows JVMs that rears its head now and again, causing this problem. the ... |
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hey, Im trying to delete a file. but not sure how to close it properly, my App lists a bunch of PDF files which you can delete with using a menu item, in order to delete it, it must be selected first which opens the file in a tab; then the menu item becomes available. i need to be able to ... |
Hello. I have a file with over 100 000 lines. I want to locate the 5th element of each line which uses delim '|' and check the value against the next line, of the 5th element with delim '|'. And if this is a duplicate I want to remove the line. Can someone please explain me how to do this? Message ... |
I have seen several posts about this, where the poster is positive that he/she has closed the file properly thru the Java API, but nonetheless a handle remains open. The workaround has been to explicitly force garbage collection, as if the actual handle remains open until the object is finalized. If this is the case, it is a bug in the ... |
I dont know how java does things on the low level. You can try opening the file, writing random bytes to a file, closing it, deleting it. write random, and repeating bytes to it in a few iterations just to make sure. check out a program called BCWipe and you will see how they do it |
The first question is 'is there a problem here?' DId the file deletion agree with the return code of File.delete()? Have you looked into any of the possible causes of that API returning false? such as the file being locked? or read-only? or open? Are they consistent with the state of the files that weren't deleted? |
Can someone give me the syntax of how to delete & rename a RandomAccess File in Java. Suppose if I use boolean success = (new File("abc.dat")).delete(); I can delete the file "abc.dat" without any problem. But how can I delete if "abc.dat" is a RandomAccess File the code boolean success = (new RandomAccessFile("abc.dat")).delete(); is not working Regards Sayan sayan83@rediffmail.com |
My application requires that a collection of files be deleted. I currently loop through an array of File objects to be deleted, and invoke the delete() method on each object, i.e. for (int i=0; i |
hi all, what i was trying to do is i want my gui application to delete itself on a certain date... i have coded it in the windowclosing event but it still doesnt work... how to make it work??? how should i make it so when the application completly closes , it deletes itself coz i know you cant delete a ... |
ok Did you run that previours program what he as sent.. he is getting whole file in one file object. Based on the fileobject siva is deleting the file. But it is not the right thing to do that. But I am configure into the boolean object then only I trying to deleted it is working.. Your suggestion is check the ... |
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