I have a little utility that does a search of a number of files. I had to create it because both Google & Windows desktop searches were not finding the appropriate lines in files. The searching works fine (I am willing to improve on it) but one of the things I would like to add to my util is a batch find/replace. So how would be the bes...
Okay... so I have a fairly interesting error... I declare a FileWriter called file, and I have it go through the following for loops: for (int i = 0; i < a.radtot; i++) { file.write("" + i * a.rstep); for (int n = 0; n < a.timetot; n++) { file.write("\t " + T[n][i]); System.out.println(T[n][i] + " " + n + " " + ...
this code is correct?? String note = "text.txt"; FileWriter file = new FileWriter(note); Scanner sc = new Scanner(System.in); System.out.println("Enter your name:"); String name = sc.next(); file.close(); How can I pass this file to the program as a command line argument??? ...
There's a loop where we get certain data. Depending on the data, file writer needs to write to different files. Is it a good practice? ...
I'm currently using FileWriter to create and write to a file. Is there any way that i can write to the same file every time without delete the contents in there? fout = new FileWriter( "Distribution_" + Double.toString(_lowerBound) + "_" + Double.toString(_highBound) + ".txt"); fileout = new PrintWriter(fout,true); fileout.pr...
Good morning all, I'm having a few problems with a method in my C# code that should enable a DataGridView to be saved to a .txt file. The code is as below: private void saveToTxt_Btn_Click(object sender, EventArgs e) { filenameText.Text = serviceDataGrid.Rows.Count.ToString(); //string toOutFile = @"C:\" + filename...
I'm trying to write TIFF IFDs, and I'm looking for a simple way to do the following (this code obviously is wrong but it gets the idea across of what I want): out.writeChar(12) (bytes 0-1) out.writeChar(259) (bytes 2-3) out.writeChar(3) (bytes 4-5) out.writeInt(1) (bytes 6-9) out.writeInt(1) (bytes 10-13) Would write: 0c00 0301 0300 ...
I am creating and writing to a file using the following pattern: File afile = new File("C:/dev/ws/DataOrdering/data/" + thisDate + "_" + thisTime + "_visdata.csv"); FileWriter writer = new FileWriter(afile); writer.append(tradeDetails); writer.close(); However for some reason only the first file is written to, after that the files...
Hi Everyone, I have a piece of code that generates new data whenever there is new data available as InputStream . The same file is overwritten everytime. Sometimes the file becomes 0 kb before it gets written. A webservice reads these files at regular intervals. I need to avoid the case when the file is 0 bytes. How do it do this? Wil...
I have a question in my mind that, while writing into the file, before closing is done, should we include flush()??. If so what it will do exactly? dont streams auto flush?? EDIT: So flush what it actually do? ...
I was using the CreateText method to create an empty file (as below) in "App1". Then tried to have another application write to that file but it failed b/c it was locked. It was not unlocked until I closed "App1" File.CreateText(path) To fix this I can do this: Dim sw As StreamWriter = File.CreateText(path) sw.Close() Why does ca...
Hi Guys I have a problem please guide me :) I write this method : public void createTempFile() throws Exception{ //CHTYPE & FINAL are Vector File file = File.createTempFile("Temp", ".txt", new File(System.getProperty("user.dir"))); file.deleteOnExit(); FileWriter fw = n...
I have chosen nearly 200 files to write on a position automatically on a particular time. Created a separate job names in Quartz scheduler. The job will be triggered on a time. I can read the files only after all the files have been written. I could not read after one file is written. I have closed the FileWriter after one file written. ...
My program is suppose to maintain a collection of Photos in a PhotoAlbum. It begins by reading a folder of photos and adds them to my PhotoAlbum. It then prints a menu that allows the user to list all the photos, add a photo, find a photo, save, and quit the program. Right now if I run my program it will add the 100 photos to the PhotoAl...
Hi I am having no problem writing to or appending to a file, the only problem is that as soon as I quit the program and then run it again, it creates a new file overwriting my original file. This is a problem, as I am using the text file to keep a running tally. Is there a way to get an already created text file as an object and then ap...
Hi, I want to write a new file with the Java FileWriter. I use it like this: FileWriter newJsp = new FileWriter("C:\\user\Desktop\dir1\dir2\filename.txt"); Now the dir1 and dir2 currently don't exist. I want Java to create them automatically if they aren't already there. Actually Java should set up the whole file path if not already ...
Hi, I have this code: private static void saveMetricsToCSV(String fileName, double[] metrics) { try { FileWriter fWriter = new FileWriter( System.getProperty("user.dir") + "\\output\\" + fileTimestamp + "_" + fileDBSize + "-" + fileName + ".csv" ); Buf...
Is there anyway I can write to an already existing file using Filewriter For example when the user clicks a submit button: FileWriter writer = new FileWriter("myfile.csv"); writer.append("LastName"); writer.append(','); writer.append("FirstName"); writer.append('/n'); writer.append(LastNameTextField.getText()); writer.append(','); wri...
Hello, I have a DB and a mapping framework which was written by the company Im working for. So I have a class for each table in the DB and those classes allow to call the DB and get various information in DataSets or DataTables for example. Now I am supposed to write that information to a TXT file in a certain format (I have the specs ho...
For storing data offline WebApp can use: session storage, "advanced version of cookies" key/value based Web Storage (AKA local/global/offline/DOM storage) sql-based Web SQL Database and Indexed Database API FileReader and FileWriter API (requires user to select files each time the application loads) But apparently there is no File St...