I documented 15 ways to read a file in Java and then tested them for speed with various file sizes - from 1 KB to 1 GB and here are the top three ways to do this: java.nio.file.Files.readAllBytes() Tested to work in Java 7, 8, and 9.

The file you read in must have exactly the file name you specify: "10_random" not "10_random.txt" not "10_random.blah", it must exactly match what you are asking for. You can change either one to match so that they line up, but just be sure they do.

Jan 5, 2013 · How to create a Java String from the contents of a file Whole text file to a String in Java. I am trying to read the contents of a file using FileReader . But i want to read the file without reading a line by line . Is it possible to read the whole file without loop. I …

Feb 16, 2024 · import java.io.File; public class ReadFilesFromFolder { public static File folder = new File("C:/Documents ...

How would I read a .txt file in Java and put every line in an array when every lines contains integers, strings, and doubles? And every line has different amounts of words/numbers.

Aug 16, 2011 · Possible Duplicate: Best way to read a text file. In Java I can open a text file like this: BufferedReader reader = new BufferedReader(new FileReader("file.txt")); My question is, how do you read from the following file? The first line is a number (830) representing number of words, and the following lines contain the words.

Read File as java.io.File. Alternatively, if you need an instance of java.io.File, you can employ the getResource() method to retrieve the resource as a URL, and create a File from the resource's path or URI. However, using the URI requires handling the URISyntaxException.

Read all text from a file. Java 11 added the readString() method to read small files as a String, preserving line terminators:

Jun 7, 2012 · This is the java code I wrote to read this file: package javaapplication1; import java.io ...

Nov 15, 2015 · I'm not a Java dev and haven't got time right now to look into it, but you may want to look at the rejected suggested edit to this post that purported to fix a race condition in your code here (as I understand it, file.json might get deleted between the f.exists() call and reading from the file, so using a try/catch is better) and consider implementing the change.