Reading Int value of bytes from inputStream

Reading Int value of bytes from inputStream

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Reading Int value of bytes from inputStream
Tag : java , By : Trevor Cortez
Date : December 01 2020, 04:47 PM

it should still fix some issue How can I get the byte values which are int ?
Convert int to string first
 int a = 454545454;
        String data = String.valueOf(a);
        try {
            byte[] bytesdata = data.getBytes("UTF-8");
        } catch (UnsupportedEncodingException e) {
Integer.parseInt(s.replaceAll("[\\D]", ""))

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Modify the bytes read by an InputStream while reading, not later

Tag : java , By : protagonist
Date : March 29 2020, 07:55 AM
I wish this help you Streams are designed to wrap. That's why you frequently see lines like:
InputStream is=new BufferedInputStream(new FileInputStream(file));

Reading first N bytes of a file as an InputStream in Java?

Tag : java , By : baylisscg
Date : March 29 2020, 07:55 AM
wish of those help Complete answer rip & replace:
It is relatively straightforward to wrap an InputStream such as to cap the number of bytes it will deliver before signaling end-of-data. FilterInputStream is targeted at this general kind of job, but since you have to override pretty much every method for this particular job, it just gets in the way.
import java.io.IOException;
import java.io.InputStream;

 * An {@code InputStream} wrapper that provides up to a maximum number of
 * bytes from the underlying stream.  Does not support mark/reset, even
 * when the wrapped stream does, and does not perform any buffering.
public class BoundedInputStream extends InputStream {

    /** This stream's underlying @{code InputStream} */
    private final InputStream data;

    /** The maximum number of bytes still available from this stream */ 
    private long bytesRemaining;

     * Initializes a new {@code BoundedInputStream} with the specified
     * underlying stream and byte limit
     * @param data the @{code InputStream} serving as the source of this
     *        one's data
     * @param maxBytes the maximum number of bytes this stream will deliver
     *        before signaling end-of-data
    public BoundedInputStream(InputStream data, long maxBytes) {
        this.data = data;
        bytesRemaining = Math.max(maxBytes, 0);

    public int available() throws IOException {
        return (int) Math.min(data.available(), bytesRemaining);

    public void close() throws IOException {

    public synchronized void mark(int limit) {
        // does nothing

    public boolean markSupported() {
        return false;

    public int read(byte[] buf, int off, int len) throws IOException {
        if (bytesRemaining > 0) {
            int nRead = data.read(
                    buf, off, (int) Math.min(len, bytesRemaining));

            bytesRemaining -= nRead;

            return nRead;
        } else {
            return -1;

    public int read(byte[] buf) throws IOException {
        return this.read(buf, 0, buf.length);

    public synchronized void reset() throws IOException {
        throw new IOException("reset() not supported");

    public long skip(long n) throws IOException {
        long skipped = data.skip(Math.min(n, bytesRemaining));

        bytesRemaining -= skipped;

        return skipped;

    public int read() throws IOException {
        if (bytesRemaining > 0) {
            int c = data.read();

            if (c >= 0) {
                bytesRemaining -= 1;

            return c;
        } else {
            return -1;

Xamarin Bluetooth InputStream not reading all the bytes (sometime)

Tag : android , By : Fenix Drakken
Date : March 29 2020, 07:55 AM
hope this fix your issue I used this code to read the reply of a Bluetooth not LE device. , I would use the following code instead:
//create new class for connect thread
  private class ConnectedThread extends Thread {
        private final InputStream mmInStream;
        private final OutputStream mmOutStream;

    //creation of the connect thread
    public ConnectedThread(BluetoothSocket socket) {
        InputStream tmpIn = null;
        OutputStream tmpOut = null;

        try {
            //Create I/O streams for connection
            tmpIn = socket.getInputStream();
            tmpOut = socket.getOutputStream();
        } catch (IOException e) { }

        mmInStream = tmpIn;
        mmOutStream = tmpOut;

    public void run() {
        byte[] buffer = new byte[256];
        int bytes; 

        // Keep looping to listen for received messages
        while (true) {
            try {
                bytes = mmInStream.read(buffer);            //read bytes from input buffer
                String readMessage = new String(buffer, 0, bytes);
                // Send the obtained bytes to the UI Activity via handler
                bluetoothIn.obtainMessage(handlerState, bytes, -1, readMessage).sendToTarget();
            } catch (IOException e) {
    //write method
    public void write(String input) {
        byte[] msgBuffer = input.getBytes();           //converts entered String into bytes
        try {
            mmOutStream.write(msgBuffer);                //write bytes over BT connection via outstream
        } catch (IOException e) {
            //if you cannot write, close the application
            Toast.makeText(getBaseContext(), "Connection Failure", Toast.LENGTH_LONG).show();


Reading the InputStream bytes

Tag : java , By : lamberms
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I am trying to get the byte of the inputStream of the clientSocket. The code is written in C++ which I am trying to write in Java. ,
Does Java contain a method like recv in C++?

java inputstream not reading leading hex bytes

Tag : java , By : Brian Cupps
Date : March 29 2020, 07:55 AM
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