writer Questions

3

Solved

I realize that the csv library in Python always generates DOS end-of-line characters. Even if I use the 'wb' mode, even if I use Linux. import csv f = open('output.txt', 'wb'); writer = csv.write...
Rockhampton asked 23/3, 2012 at 19:53

9

Hello I am trying to add the date and time to a file name in JAVA. I can get the date and time printed within the file, which I also want done, but when I place the toString in the FileWriter I get...
Hicks asked 18/6, 2012 at 17:39

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I am using csv package now, and every time when I write to a new csv file and open it with excel I will find a empty row in between every two rows. filereader = csv.reader(open("tests.csv", "r"), ...
Marcum asked 31/5, 2013 at 19:40

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The java.io.Writer interface has two methods called append and write. What are the differences between these two? It even says that An invocation of this method of the form out.append(c) behaves...
Gudrin asked 10/5, 2011 at 12:21

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I have a method which runs asynchronously after start, using OutputStream or Writer as parameter. It acts as a recording adapter for an OutputStream or Writer (it's a third party API I can't chang...
Oculist asked 9/8, 2011 at 12:8

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Is it possible to convert a string to an io.Writer type in Golang? I will be using this string in fmt.Fprintf() but I am unable to convert the type.
Kahlil asked 30/3, 2016 at 7:31

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How can I iterate a Map to write the content from certain index to another. Map<String, Integer> map = new LinkedHashMap<>(); BufferedWriter bufferedWriter = new BufferedWriter(new Fi...
Parmentier asked 4/12, 2014 at 18:7

8

I am trying to add a new row to my old CSV file. Basically, it gets updated each time I run the Python script. Right now I am storing the old CSV rows values in a list and then deleting the CSV fil...
Christchurch asked 2/3, 2010 at 14:23

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FileReader rd=new FileReader("new.mp4"); FileWriter wr=new FileWriter("output.mp4"); int ch; while((ch=rd.read())!=-1) wr.write(ch); wr.flush(); wr.close(); When I use the FileReader and FileWr...
Protolithic asked 1/3, 2011 at 13:38

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The implementation of the Haskell writer monad on lists (Writer [w] a) will use ++ to add items. So if I write this code in a list writer monad: do tell [a, b, c] tell [d] The lists will be ap...
Pb asked 14/12, 2018 at 19:37

2

I have a requirement to get the data from a database and write that data to files based on the filename given in the database. This is how data is defined in the database: Columns --> FILE_NA...
Navar asked 12/4, 2013 at 14:49

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I'm trying to write json data to a json file. After code execution no errors are thrown but the .json file is empty. Please find below code and help on this import java.io.BufferedWriter; import...
Kozlowski asked 1/9, 2017 at 7:14

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I have a list of numbers that I want to put in a single column in a .csv file. The code below writes the values across a single row. How can I change the code so that Python writes the each value o...
Pothook asked 20/11, 2011 at 2:37

3

I have a very large string in the CSV format that will be written to a CSV file. I try to write it to CSV using the simplest if the python script results=""" "2013-12-03 23:59:52","/core/log","...
Eulaliaeulaliah asked 4/12, 2013 at 7:22

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I am not sure whether I need to call Flush() on the used objects if I write something like this: using (FileStream...) using (CryptoStream...) using (BinaryWriter...) { // do something } Are th...
Autointoxication asked 10/10, 2011 at 9:14

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We occasionally see revision-suggestions for documents (usually from our attorneys) where removed content gets color coded and has a strike through it. Added content also gets its own color coding....
Microphotograph asked 29/11, 2012 at 22:45

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As a beginner in Go, I have problems understanding io.Writer. My target: take a struct and write it into a json file. Approach: - use encoding/json.Marshal to convert my struct into bytes - feed...
Beaudry asked 4/5, 2017 at 21:41

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I have two bash script. One script write in a fifo. The second one read from the fifo, but AFTER the first one end to write. But something does not work. I do not understand where the problem is....
Blackington asked 17/9, 2014 at 21:46

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I need to convert a stream of char into a stream of bytes, i.e. I need an adapter from a java.io.Writer interface to a java.io.OutputStream, supporting any valid Charset which I will have as a conf...
Provender asked 23/4, 2016 at 10:51

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UPDATE2: My own version of the adapter class, that only calls instanceof in the constructor and uses a (Java 1.5) delta in the flush() and close() functions (avoiding the need for any reflection or...
Chloromycetin asked 18/1, 2014 at 5:30

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I am writing a piece of code: OutputStream outputStream = new FileOutputStream(createdFile); GZIPOutputStream gzipOutputStream = new GZIPOutputStream(outputStream); BufferedWriter bw = new Buffere...
Enrage asked 2/2, 2015 at 11:10

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It was claimed in Validations in Haskell that use of a Writer guarantees right-associative concatenation. However, this example seems to show otherwise. What's the correct answer? {-# LANGUAGE Ove...
Gopherwood asked 4/1, 2012 at 18:18

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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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I know that writers should be used instead of outputstreams when writing text, but still I don't understand why there are extra characters in the file outputStream.txt after running this program: ...
Claptrap asked 13/3, 2014 at 11:12

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I have the following code: type FWriter struct { WriteF func(p []byte) (n int,err error) } func (self *FWriter) Write(p []byte) (n int, err error) { return self.WriteF(p) } func MyWriteFunctio...
Goldofpleasure asked 22/12, 2013 at 11:36

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