If you’re attempting to verify the existence of a web resource, I would recommend using the HttpWebRequest class. This will allow you to send a HEAD request to the URL in question. Only the response headers will be returned, even if the resource exists. var url = “http://www.domain.com/image.png”; HttpWebResponse response = null; var request = …
FileStream logFileStream = new FileStream(“c:\test.txt”, FileMode.Open, FileAccess.Read, FileShare.ReadWrite); StreamReader logFileReader = new StreamReader(logFileStream); while (!logFileReader.EndOfStream) { string line = logFileReader.ReadLine(); // Your code here } // Clean up logFileReader.Close(); logFileStream.Close(); Original source for code
Use java.io.StringReader: return new StringReader(string);. Next time you need a reader, you can check the “Direct known subclasses” of the Reader class. Same goes for InputStream, etc. The place to start is the javadoc – it contains quite a lot of useful information. But for your task at hand, you’d better follow Jon Lin’ advice …
I know that this post is old, but this still comes up in search results. I couldn’t find the solution to this problem online, so I ended up figuring it out myself. If you’re using Ubuntu, then there is a program called “Apparmor” that is preventing MySQL from seeing the file. Here’s what you need …
You can also use java.nio.file.Path to do this much more easily. The java.nio.file.Path.startsWith method seems to handle all possible cases. Example: private static void isChild(Path child, String parentText) { Path parent = Paths.get(parentText).toAbsolutePath(); System.out.println(parentText + ” = ” + child.startsWith(parent)); } public static void main(String[] args) { Path child = Paths.get(“/FolderA/FolderB/File”).toAbsolutePath(); isChild(child, “/FolderA/FolderB/File”); isChild(child, “/FolderA/FolderB/F”); …
apache commons-io has: String str = FileUtils.readFileToString(file, “utf-8”); But there is no such utility in the standard java classes. If you (for some reason) don’t want external libraries, you’d have to reimplement it. Here are some examples, and alternatively, you can see how it is implemented by commons-io or Guava.
Monomorphization costs. write(), like most filesystem functions in Rust, takes AsRef<Path> instead of Path, for convenience (to allow you to pass e.g. a &str). But that also has a cost: it means that the function will be monomorphized and optimized separately for each type, while there is no real need for that. While it is …
No, that is not possible, not at least in the Standard conformant implementation of the library. The fstream class doesn’t store the filename, and doesn’t provide any function for retrieving it. So one way to keep track of this information is to use std::map as: std::map<std::fstream*, std::string> stream_file_table; void f() { //when you open a …
Use shutil.copyfileobj: with open(‘file.xml’, ‘w’) as fd: buf.seek(0) shutil.copyfileobj(buf, fd) or shutil.copyfileobj(buf, fd, -1) to copy from a file object without using chunks of limited size (used to avoid uncontrolled memory consumption).
Have a look at File.Copy() Using File.Copy you can specify the new file name as part of the destination string. So something like File.Copy(@”c:\test.txt”, @”c:\test\foo.txt”); See also How to: Copy, Delete, and Move Files and Folders (C# Programming Guide)