File I/O

Overview

File I/O in Java allows reading from and writing to files.

Topics

• Reading Files
• Writing Files
• BufferedReader and BufferedWriter
• File Handling with try-with-resources

Examples

try (BufferedReader reader = new BufferedReader(new FileReader("input.txt"))) {
    String line;
    while ((line = reader.readLine()) != null) {
        System.out.println(line);
    }
}

try (BufferedWriter writer = new BufferedWriter(new FileWriter("output.txt"))) {
    writer.write("Hello, File!");
}

Tags

#java #fileio #inputoutput #bufferedreader #bufferedwriter #trywithresources