bufferedwriter Questions

1

I am facing the following problem: I'm trying to implement a simulator for supply chains. These will produce a lot of EPCIS Events (events that occur at RFID readers). These events should then be w...
Westernism asked 10/1, 2012 at 15:47

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I'm working on a program that requires quick access to a CSV comma-delimited spreadsheet file. So far I've been able to read from it easily using a BufferedReader. However, now I want to be able to...
Pereira asked 9/1, 2013 at 1:14

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I have a Java program that reads some text from a file, line by line, and writes new text to an output file. But not all the text I write to my BufferedWriter appears in the output file after the p...
Abvolt asked 16/11, 2012 at 23:55

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I'm having an issue getting this to work. It takes in a string which consists of several pieces of information put together. However, when I try to write the String to a file in order to track chan...

2

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This is probably ridiculously simple for gun Java programmers, yet the fact that I (a relative newbie to Java) couldn't find a simple, straightforward example of how to do it means that I'm going t...
Sahib asked 15/8, 2015 at 21:55

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I have been trying to write an array to a file. I know how to write integers or String to a file but to bring an array confuses me. I am using this right now: public static void write (String file...
Sinus asked 4/12, 2012 at 16:19

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I want to write a file results.txt to a specific directory on my machine (Z:\results to be precise). How do I go about specifying the directory to BufferedWriter/FileWriter? Currently, it writes t...
Atherosclerosis asked 26/4, 2011 at 22:25

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For some reason this code results in a truncated text.txt file. It should (according to me) write out 1000 results, but the output file has various amounts of lines (depending on the run). Weirdly,...
Procryptic asked 16/8, 2012 at 1:38

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How can I access data in my file without first closing my BufferedWriter? import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileReader; import java....
Expanse asked 19/6, 2018 at 9:39

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I know that the PrintWriter is really good if we want to write formatted data, and I also know the use of BufferedWriter to improve IO performance. But I tried something like this, PrintWriter pw...
Dainedainty asked 24/8, 2015 at 8:30

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I am writing a csv file using buffered writer in java. My data is written correctly but I want to have different columns under which the data comes, Currently it is writing each instance of date in...
Artificial asked 26/9, 2013 at 11:50

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I have a Socket that I am both reading and writing to, via BufferedReaders and BufferedWriters. I'm not sure which operations are okay to do from separate threads. I would guess that writing to the...
Decagon asked 12/7, 2011 at 23:25

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I need to limit the file size to 1 GB while writing preferably using BufferedWriter. Is it possible using BufferedWriter or I have to use other libraries ? like try (BufferedWriter writer = File...
Wingding asked 23/8, 2016 at 5:13

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When using a PrintWriter like this : PrintWriter fileOut = new PrintWriter(new BufferedWriter(new FileWriter(csvFileIn))); What do I need to close in the finally block ? The PrintWriter, t...
Kathyrnkati asked 8/7, 2016 at 9:54

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I'm trying to store a 2D array in a text file with BufferedWriter and I would also like to retrieve a 2D array from a text file and display in its original array format with BufferedReader. I have ...
Tannenwald asked 23/1, 2016 at 2:9

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I have a string that I format with the System.out.format() method, I do something like : System.out.format("I = %3d var = %9.6f", i, myVar); but when I try to write this formatted string into a ...
Lanilaniard asked 17/9, 2015 at 9:33

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I met a problem with BufferedWriter when I write data to a single file with some threads. I set the buffer size of the BufferedWriter, but no matter what number I set, it flushes the data to disk ...
Luralurch asked 8/9, 2015 at 7:18

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I am trying to write a single huge file in Java using multiple threads. I have tried both FileWriter and bufferedWriter classes in Java. The content being written is actually an entire table (Po...
Giordano asked 10/3, 2014 at 18:19

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I am a rookie programmer-wanna-be and came across this problem I couldn't find the answer for. I use Eclipse, and for the program I use slick and lwjgl-2.9.3 The following code is in a state, insid...
Wileywilfong asked 30/4, 2015 at 14:17

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I was trying some stuff in Swing (Java), but getting very strange results. I am getting a String from JTextArea.getText() method and adding "\n" to it. This resultant string I am writing into a fi...
Braxy asked 24/2, 2015 at 9:51

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I read this question Using flush() before close() , and the accepted answer is this only means you follow the pattern. Just like BufferedWriter#close() or FilterOutputStream.#close() , if all of ...
Escapism asked 11/11, 2014 at 13:17

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Here is the code snippet. read = new FileReader("trainfiles/"+filenames[i]); br = new BufferedReader(read); while((lines = br.readLine())!=null){ st = new StringTokenizer(lines); while(st.hasM...
Monochromat asked 13/12, 2010 at 15:4

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I've been using Java's BufferedWriter to write to a file to parse out some input. When I open the file after, however, there seems to be added null characters. I tried specifying the encoding as "U...
Consentaneous asked 19/3, 2014 at 13:48

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I'm trying to create a program which saves text on a file and then text can be added onto the file. However, every time i try to write to the file, it overwrites it and doesn't write anything...
Supersession asked 31/12, 2013 at 16:47

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I would like to create a HTML file for my report. The content in the report can be created either by using BufferedWriter#write(String) File f = new File("source.htm"); BufferedWriter bw = new Bu...
Byline asked 3/12, 2013 at 13:3

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