public static void main(String[] args) { File myObj = new File("filename.txt"); if (myObj.exists()) { System.out.println("File name: " + myObj.getName()); System.out.println("Absolute path: " + myObj.getAbsolutePath()); System.out.println("Writeable: " + myObj.canWrite()); System.out.println("Readable " + myObj.canRead()); System.out.println ...

Oct 19, 2014 · String filename = keyboard.nextLine(); // Open the file. File file = new File(filename); Scanner inputFile = new Scanner(file); // Read lines from the file until no more are left. while (inputFile.hasNext()) { // Read the next name. String familyName = inputFile.nextLine(); // Display the last name read. System.out.println(familyName ...

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.

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.

Opening a file in Java is a fundamental operation that can be achieved through various classes and methods provided by the Java API, tailored to different file operations like reading or writing. For reading text files, the FileReader class combined with …

Dec 15, 2014 · Opening files in java seems a bit tricky -- for .txt files one must use a File object in conjunction with a Scanner or BufferedReader object -- for image IO, one must use an ImageIcon class -- and ...

Jan 9, 2025 · Java provides a robust way to handle file input and output through the FileInputStream and FileOutputStream classes. These classes allow you to read and write raw byte data to and from files, making them suitable for binary files. Here’s a simple example of how to use FileInputStream to read a file:

Feb 8, 2023 · In this tutorial, we will learn how to open a file using both java.io.package and java.nio.package. There are six ways available to open or read a file in java. They are: 1. Desktop class. 2. Scanner class. 3. FileReader class. 4. FileInputStream class. 5. BufferedReader class. 6. Java nio package.

Learn different ways to open file in java using Desktop class,FileInputStream class, BufferedReader class,FileReader class, Scanner class etc

Nov 13, 2023 · One of the simplest ways to open a file is by using a FileInputStream. This allows reading raw bytes from a file. Here is an example: public static void main(String[] args) { try { File file = new File("data.bin"); FileInputStream stream = new FileInputStream(file); int data = stream.read(); while(data != -1){ // do something with data.