Long story short: java.io.File will most likely never be deprecated / unsupported. That said, java.nio.file.Path is part of the more modern java.nio.file lib, and does everything java.io.File can, but generally in a better way, and more. For new projects, use Path. And if you ever need a File object for legacy, just call Path#toFile() Migrating … Read more
To Create (new FileInfo(filePath)).Directory.Create() before writing to the file. ….Or, if it exists, then create (else do nothing) System.IO.FileInfo file = new System.IO.FileInfo(filePath); file.Directory.Create(); // If the directory already exists, this method does nothing. System.IO.File.WriteAllText(file.FullName, content);
None of the functions I show here panic on their own, but I am using expect because I don’t know what kind of error handling will fit best into your application. Go read The Rust Programming Language‘s chapter on error handling to understand how to appropriately handle failure in your own program. Rust 1.26 and … Read more
One way is to flush the stream buffer into a separate memory stream, and then convert that to std::string (error handling omitted): std::string slurp(std::ifstream& in) { std::ostringstream sstr; sstr << in.rdbuf(); return sstr.str(); } This is nicely concise. However, as noted in the question this performs a redundant copy and unfortunately there is fundamentally no … Read more
You can use PyPdf2s PdfMerger class. File Concatenation You can simply concatenate files by using the append method. from PyPDF2 import PdfMerger pdfs = [‘file1.pdf’, ‘file2.pdf’, ‘file3.pdf’, ‘file4.pdf’] merger = PdfMerger() for pdf in pdfs: merger.append(pdf) merger.write(“result.pdf”) merger.close() You can pass file handles instead file paths if you want. File Merging If you want more … Read more
import org.apache.commons.io.FileUtils; FileUtils.cleanDirectory(directory); There is this method available in the same file. This will also recursively deletes all sub-folders and files under them. Docs: org.apache.commons.io.FileUtils.cleanDirectory
Your chunk of code does not create a new one, it only checks if its already there and nothing else. File file = new File(filePath); if(file.exists()) //Do something else // Do something else.
How about File.ReadAllText: string contents = File.ReadAllText(@”C:\temp\test.txt”);
Python allows putting multiple open() statements in a single with. You comma-separate them. Your code would then be: def filter(txt, oldfile, newfile): ”’\ Read a list of names from a file line by line into an output file. If a line begins with a particular name, insert a string of text after the name before … Read more
If your task is not to invent the line-by-line reading function, but just to read the file line-by-line, you may use a typical code snippet involving the getline() function (see the manual page here): #define _GNU_SOURCE #include <stdio.h> #include <stdlib.h> int main(void) { FILE * fp; char * line = NULL; size_t len = 0; … Read more