Use following codes to read the file. public static void main(String[] args) { try { System.out.print("Enter the file name with extension : "); Scanner input = new Scanner(System.in); File file = new File(input.nextLine()); input = new Scanner(file); while (input.hasNextLine()) { String line = input.nextLine(); System.out.println(line);

In the following example, we use the Scanner class to read the contents of the text file we created in the previous chapter: myReader.close(); } catch (FileNotFoundException e) { System.out.println("An error occurred."); e.printStackTrace(); } } } Files in …

Aug 1, 2019 · Learn how to read the contents of a file in Java using the Scanner class with this detailed tutorial.

Jan 4, 2025 · There are several ways to read a plain text file in Java e.g. you can use FileReader, BufferedReader, or Scanner to read a text file. Every utility provides something special e.g. BufferedReader provides buffering of data for fast reading, and Scanner provides parsing ability.

Feb 15, 2013 · // Prepare to read from the file, using a Scanner object. File file = new File(filename); Scanner in = new Scanner(file); ArrayList<DogShop> shops = new ArrayList<DogShop>(); // Read each line until end of file is reached. while (in.hasNextLine()) // Read an entire line, which contains all the details for 1 account. String line = in.nextLine();

Jan 5, 2024 · In this quick tutorial, we’ll illustrate how to use the Java Scanner class – to read input and find and skip patterns with different delimiters. 2. Scan a File. First – let’s see how to read a file using Scanner. In the following example – we read a file containing “ Hello world ” into tokens: Scanner scanner = new Scanner (new File ("test.txt"));

Since Scanner requires a java.io.File object, I don't think there's a way to read with Scanner only without using any java.io classes. Here are two ways to read a file with the Scanner class - using default encoding and an explicit encoding.

May 1, 2021 · This post will discuss how to read the contents of a file using Scanner class in Java. Scanner is a utility class in java.util package which can parse primitive types and strings using regular expressions. It can read text from any …

Jan 8, 2024 · In this tutorial, we’ll explore different ways to read from a File in Java. First, we’ll learn how to load a file from the classpath, a URL, or from a JAR file using standard Java classes. Second, we’ll see how to read the content with BufferedReader, Scanner, StreamTokenizer, DataInputStream, SequenceInputStream, and FileChannel.

Feb 13, 2025 · Reading text files in Java using the Scanner class is a straightforward process, especially suitable for beginners and developers with basic knowledge. This guide provided a comprehensive overview, from setting up your project to implementing robust file reading with exception handling.