I’m writing a program in C# that needs to repeatedly access 1 image file. Most of the time it works, but if my computer’s running fast, it will try to access the file before it’s been saved back to the filesystem and throw an error: “File in use by another process” I would like to … Read more
I need to read a large text file of around 5-6 GB line by line using Java. How can I do this quickly? 22 s 22 A common pattern is to use try (BufferedReader br = new BufferedReader(new FileReader(file))) { String line; while ((line = br.readLine()) != null) { // process the line. } } … Read more
It seems there are different ways to read and write data of files in Java. I want to read ASCII data from a file. What are the possible ways and their differences? 28 s 28 ASCII is a TEXT file so you would use Readers for reading. Java also supports reading from a binary file … Read more
This question’s answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions. How can I find all the files in a directory having the extension .txt in python? 25 s 25 You can use glob: import glob, os os.chdir(“/mydir”) for file in glob.glob(“*.txt”): print(file) … Read more
How do I write a line to a file in modern Python? I heard that this is deprecated: print >>f, “hi there” Also, does “\n” work on all platforms, or should I use “\r\n” on Windows? 1 16
In bash, calling foo would display any output from that command on the stdout. Calling foo > output would redirect any output from that command to the file specified (in this case ‘output’). Is there a way to redirect output to a file and have it display on stdout? 1 11
What’s the simplest way to create and write to a (text) file in Java? 3 35
I’ve been using the idiom below for some time now. And it seems to be the most wide-spread, at least on the sites I’ve visited. Is there a better/different way to read a file into a string in Java? private String readFile(String file) throws IOException { BufferedReader reader = new BufferedReader(new FileReader (file)); String line … Read more
How can I create an Excel spreadsheet with C# without requiring Excel to be installed on the machine that’s running the code? 4 46
Say I’m in a Git repository. I delete a file and commit that change. I continue working and make some more commits. Then, I find I need to restore that file. I know I can checkout a file using git checkout HEAD^ foo.bar, but I don’t really know when that file was deleted. What would … Read more