Examples of java.io.FileInputStream.skip()

java.io.FileInputStream.skip()
Skips over and discards n bytes of data from the input stream.
The skip method may, for a variety of reasons, end up skipping over some smaller number of bytes, possibly 0. If n is negative, an IOException is thrown, even though the skip method of the {@link InputStream} superclass does nothing in this case.The actual number of bytes skipped is returned.
This method may skip more bytes than are remaining in the backing file. This produces no exception and the number of bytes skipped may include some number of bytes that were beyond the EOF of the backing file. Attempting to read from the stream after skipping past the end will result in -1 indicating the end of the file. @param n the number of bytes to be skipped. @return the actual number of bytes skipped. @exception IOException if n is negative, if the stream does notsupport seek, or if an I/O error occurs.

      File file = new File(filename);
      if (file.length() > 0)
      {
        FileInputStream readingFile;
        readingFile = new FileInputStream(filename);
        readingFile.skip(file.length() - 1);
        lastByte = readingFile.read();
        readingFile.close();
      }
    }
    catch (Exception e)

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                                    socket = activeWaitForConnection(_serverSocket);
                                }


                                fileInput = new FileInputStream(source);
                                if (startPos > 0)
                                    fileInput.skip(startPos);
                                ftp.notify(new FtpNotify<String>(FtpNotify.TYPE_STOR, ProgNotify.START, bTemp ? m_tempFileNames[0] : _target));
                                OutputStream outputStream = socket.getOutputStream();
                                int readed;
                                byte[] buf = new byte[m_bufSize];
                                while (!bAbort && (readed = fileInput.read(buf)) > 0)

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        public byte[] cutFile(File file, long offSet, int size)
                throws IOException {
            FileInputStream fis = null;
            try {
                fis = new FileInputStream(file);
                fis.skip(offSet);
                byte[] tmp = new byte[size];
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                int l = fis.read(tmp);
                baos.write(tmp, 0, l);
                return baos.toByteArray();

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    final FileInputStream fis = new FileInputStream(_file);
    int bytesRead = -100;
    try {
      if (_filePtr > 0)
        for (long i = 0; i < _filePtr; i += fis.skip(_filePtr - i)) {
        }


      bytesRead = fis.read(_buffer, _bufferSize, _buffer.length - _bufferSize);


      if (bytesRead < 0)

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        //open the map-output file
        mapOutputIn = SecureIOUtils.openForRead(
            new File(mapOutputFileName.toUri().getPath()), runAsUserName, null);


        //seek to the correct offset for the reduce
        mapOutputIn.skip(info.startOffset);
        long rem = info.partLength;
        int len =
          mapOutputIn.read(buffer, 0, (int)Math.min(rem, MAX_BYTES_TO_READ));
        while (rem > 0 && len >= 0) {
          rem -= len;

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        String result = null;
        final File file = new File(path + "/bin/start.boot");
        try {
            final FileInputStream is = new FileInputStream(file);
            try {
                is.skip(14);
                readstring(is);
                result = readstring(is);
            } finally {
                is.close();
            }

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                    }
                }
            }


            FileInputStream is = new FileInputStream(file);
            is.skip(startFrom);


            int status = (startFrom == 0) ? HTTP_OK : HTTP_PARTIAL;
            tx.setHeader("Content-Length", "" + (length - startFrom));
            tx.setHeader("Content-Range", "" + startFrom + "-" + (length - 1) + "/" + length);

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                    }
                }
            }


            FileInputStream fis = new FileInputStream(f);
            fis.skip(startFrom);
            Response r = new Response(HTTP_OK, mime, fis);
            r.addHeader("Content-length", "" + (f.length() - startFrom));
            r.addHeader("Content-range", "" + startFrom + "-" +
                (f.length() - 1) + "/" + f.length());
            return r;

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    return ret;
  }


  private byte[] getFileData(int i, int length) throws IOException {
    InputStream in = new FileInputStream(exe);
    in.skip(i);
    byte[] ret = new byte[length];
    in.read(ret);
    in.close();
    return ret;
  }

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     * @tests java.io.FileInputStream#skip(long)
     */
    public void test_skipNegativeArgumentJ() throws IOException {
        FileInputStream fis = new FileInputStream(fileName);
        try {
            fis.skip(-5);
            fail("IOException must be thrown if number of bytes to skip <0");
        } catch (IOException e) {
            // Expected IOException
        } finally {
            fis.close();

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