The Java Developers Almanac 1.4

e39. Using a Random Access File

    try {
        File f = new File("filename");
        RandomAccessFile raf = new RandomAccessFile(f, "rw");
    
        // Read a character
        char ch = raf.readChar();
    
        // Seek to end of file
        raf.seek(f.length());
    
        // Append to the end
        raf.writeChars("aString");
        raf.close();
    } catch (IOException e) {
    }

Related Examples

e34. Reading Text from Standard Input
e35. Reading Text from a File
e36. Reading a File into a Byte Array
e37. Writing to a File
e38. Appending to a File

See also: Directories    Encodings    Filenames and Pathnames    Files    Parsing    Serialization

© 2002 Addison-Wesley.