public static void main(String[] arguments) {
try {
// read byte data into a byte buffer
String data = "friends.dat";
FileInputStream inData = new FileInputStream(data);
FileChannel inChannel = inData.getChannel();
long inSize = inChannel.size();
ByteBuffer source = ByteBuffer.allocate((int) inSize);
inChannel.read(source, 0);
source.position(0);
System.out.println("Original byte data:");
for (int i = 0; source.remaining() > 0; i++) {
System.out.print(source.get() + " ");
}
// convert byte data into character data
source.position(0);
Charset ascii = Charset.forName("US-ASCII");
CharsetDecoder toAscii = ascii.newDecoder();
CharBuffer destination = toAscii.decode(source);
destination.position(0);
System.out.println("\n\nNew character data:");
for (int i = 0; destination.remaining() > 0; i++) {
System.out.print(destination.get());
}
System.out.println();
} catch (FileNotFoundException fne) {
System.out.println(fne.getMessage());
} catch (IOException ioe) {
System.out.println(ioe.getMessage());
}
}
/** @param args */
public static void main(String[] args) {
FileChannel fc = null;
RandomAccessFile raf = null;
// StringBuilder sb;
if (args.length != 1) {
System.out.println("Usage: Ntfs filename");
System.exit(1);
}
/*
sb = new StringBuilder();
int[] foo = {129,4,229,33};
for (int b: foo) {
sb.insert(0,String.format("%02X", b));
}
System.out.println(sb.toString());
System.exit(0);
*/
try {
raf = new RandomAccessFile(args[0], "r");
fc = raf.getChannel();
Filesystem fs = new Filesystem(fc);
fs.demo();
// fs.displayFs();
} catch (FileNotFoundException x) {
System.out.println("FNF exp: " + x.getMessage());
} catch (IOException x) {
System.out.println("IO exp: " + x.getMessage());
} finally {
if (raf != null)
try {
raf.close();
} catch (IOException e) {
e.printStackTrace(); // To change body of catch statement use File | Settings | File
// Templates.
}
}
}
