Introduction

try {
    byte[] inbuf = new byte[256];  // default size
    DatagramSocket socket = new DatagramSocket();

    // Wait for packet
    DatagramPacket packet = new DatagramPacket(inbuf, inbuf.length);
    socket.receive(packet);

    // Data is now in inbuf
    int numBytesReceived = packet.getLength();
} catch (SocketException e) {
} catch (IOException e) {
}