Examples of java.io.FileInputStream.available()

java.io.FileInputStream.available()
Returns an estimate of the number of remaining bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream. The next invocation might be the same thread or another thread. A single read or skip of this many bytes will not block, but may read or skip fewer bytes.
In some cases, a non-blocking read (or skip) may appear to be blocked when it is merely slow, for example when reading large files over slow networks. @return an estimate of the number of remaining bytes that can be read(or skipped over) from this input stream without blocking. @exception IOException if this file input stream has been closed by calling{@code close} or an I/O error occurs.

        FileOutputStream fos=null;
        
        try {
          fis=new FileInputStream(f);
          
          byte[] b=new byte[fis.available()];
          fis.read(b);
          
          String str=new String(b);
          
          fis.close();

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    byte[] returnByteArray = null;


    FileInputStream fileInputStream = new FileInputStream(licenseFile);
    DataInputStream dataInputStream = new DataInputStream(fileInputStream);
    try {
      returnByteArray = new byte[fileInputStream.available()];
      dataInputStream.readFully(returnByteArray);
    } finally {
      dataInputStream.close();
      fileInputStream.close();
    }

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          // Catch the IOException on this FileInputStream constructor and
          // on the read method so we can collect the buffer.


          fileInputStream = new FileInputStream(imageFile);
          buffer = new byte[fileInputStream.available()];
          if (buffer != null) {
            for (int i = 0, n = fileInputStream.available(); i < n; i++) {
              buffer[i] = (byte)fileInputStream.read();
            }
          }

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          // on the read method so we can collect the buffer.


          fileInputStream = new FileInputStream(imageFile);
          buffer = new byte[fileInputStream.available()];
          if (buffer != null) {
            for (int i = 0, n = fileInputStream.available(); i < n; i++) {
              buffer[i] = (byte)fileInputStream.read();
            }
          }
        } catch (CvFileException e) {
          logger.error("[CVFileEJB] Exception thrown in getFileInputStream.", e);

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        byte[] contents = null;
        File f = new File(filename);
        try {
            FileInputStream fis = new FileInputStream(f);
            int nAvail = fis.available();
            contents = new byte[nAvail];
            /*int length = */fis.read(contents);
            fis.close();


            new IOR(contents).parse(new PrintWriter(System.out, true));

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   protected static byte[] readFromFile (String filename)
      throws FileNotFoundException, IOException
   {
      FileInputStream fileInputStream = new FileInputStream(filename);
      int fileSize = fileInputStream.available();
      byte[] b = new byte[fileSize];
      fileInputStream.read(b);
      return b;
   }

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     */
    public static byte[] readFromFile(String fileName) throws Exception {
        byte[] info;
        try {
            FileInputStream fis = new FileInputStream(fileName);
            info = new byte[fis.available()];
            fis.read(info);
            fis.close();
        } catch (Exception e) {
            System.err.println("exception " + e.toString());
            info = new byte[0];

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     */
    public static byte[] readFromFile(String fileName) throws Exception {
        byte[] info;
        try {
            FileInputStream fis = new FileInputStream(fileName);
            info = new byte[fis.available()];
            fis.read(info);
            fis.close();
        } catch (Exception e) {
            info = new byte[0];
            throw new Exception(e);

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    });
    long time = 0, size = 0;
    for(int i=0; i<n; i++) {
      for(File txt : txts) {
        FileInputStream ftxt = new FileInputStream(txt);
        int s = ftxt.available();
        size += s;
        BufferedReader reader = new BufferedReader(new InputStreamReader(ftxt));
        
        OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(new File(txt.getAbsoluteFile()+"."+outputChipName+".word")));
        BufferedWriter bw = new BufferedWriter(osw);

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    });
    long time = 0, size = 0;
    for(int i=0; i<n; i++) {
      for(File txt : txts) {
        FileInputStream ftxt = new FileInputStream(txt);
        int s = ftxt.available();
        size += s;
        TokenStream ts = analyzer.tokenStream("text", new InputStreamReader(ftxt));
        OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(new File(txt.getAbsoluteFile()+"."+outputChipName+".word")));
        BufferedWriter bw = new BufferedWriter(osw);
        long start = System.currentTimeMillis();

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