Questions tagged [file-writing]

This tag refers to the process of writing text or data to a file.

932 questions
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Java: How to remove  character appearing before £

Whenever I print or write the £ symbol , or even do anything with it, it is always displayed as £ with no reason for the  to be there. I have tried writing the character in unicode but it still resulted in this weird combination. Is there any way…
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How do you write a dictionary to a CSV file on a line that already contains text?

I'm using python 3.6.0. I have written dictionaries to CSV files before, but never on lines that already contains text. I am having trouble with that now. Here's my code: import csv f='/Users/[my…
dxxg-syz35
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Application.persistentDataPath Failed

I have updated my unity to 2017.4.0f1 and I have script about saving some info inside a text-like file. I have used public static string savePath = Application.persistentDataPath + "/"; but I get this error get_persistentDataPath is not allowed…
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Implement Multiple client reads a file and multiple servers writes to a file via Client Server

Below is the question, I was asked in an interview, Datacenter has 10000 servers.We have a single syslog driver which collates all the logs from all the servers in the datacenter and writes it in a single file called syslog.log Let's say the…
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RandomAccessFile writeInt(int i) vs write(byte[] b) - performance

I've faced an interesting thing today regarding RandomAccessFile. I've noticed that using RandomAccessFile's writeInt(int i) method is much more slower than using RandomAccessFile's write(byte[] b) where I first convert int value to byte[4] array.…
Kristoff
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Using .write() in Python only writes a single line

So, as an assignment from Thenewboston, I'm trying to grab a block of code from his site and write it to a file. The code grabbing part works just fine, but the writing part doesn't work: import requests from bs4 import BeautifulSoup def…
SirDarknight
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Files created in Vagrant centos/7 do not appear in Windows

I have primarily used Ubuntu boxes in Vagrant and in those any files created within the box have been successfully synced to Windows also. Usually things like git pull. However, I now have centos/7 and cannot get any files to sync to Windows. If you…
Juha Untinen
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Is Files.write() method thread safe.

Is the following method provided by Java NIO thread safe? public static Path write(Path path, Iterable lines, Charset cs, OpenOption... options) throws IOException The API doesn't say anything…
Mayuran
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How to format print statements with two vector variables?

I'd like to write several messages and tables on the same .txt file. For example: x=[23.9,10.9,8.9,14.2] y=[9.83,8.04,7.47,8.32] file=fopen('Results.txt','wt'); fprintf(file,'Results1\n'); fprintf(file,'%.2f…
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Write to temp file and read from command line

I need to write a temporary file to a n*x machine using python3 so that I can read it from the command line. import tempfile import subprocess from os import path string = 'hi *there*' # run markdown server-side tfile =…
mareoraft
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Write an array to multi column CSV format using Ruby

I have an array of arrays in Ruby that i'm trying to output to a CSV file (or text). That I can then easily transfer over to another XML file for graphing. I can't seem to get the output (in text format) like so. Instead I get one line of data…
Ryan Anderson
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Python-Multiple writing the same line in txt file

I have code like this: def export_devices(): code = input("Enter device code: ") amount = int(input("How many devices you export: ")) with open("uredjaji.txt", "r+") as f: current_position = 0 line =…
Нео
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Newline "\n" not Working when Writing a .txt file Python

for word in keys: out.write(word+" "+str(dictionary[word])+"\n") out=open("alice2.txt", "r") out.read() For some reason, instead of getting a new line for every word in the dictionary, python is literally printing \n between every key…
user7792600
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Write data in existing file Yii2 framework

I am trying to write data in a json file from yii2 framework. It's returning error failed to open stream. My code is given below. $productjson = json_encode($value); echo $jsonfile=Yii::$app->view->theme->baseUrl.'/assets/json/aresult.json'; $fp =…
M.Kaisar
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DAO Class not writing to file

I'm attempting to make a login system by using a model and DAO class to write users to a file called users.txt In my controller, I created an initialize method: public void initialize(){ User user = new User(); user.addUser(); } Here's the…
cosmo
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