DatagramConnection: receive(Datagram value) throws IOException : DatagramConnection « javax.microedition.io « Java by API

1. Java by API
2. javax.microedition.io
3. DatagramConnection

DatagramConnection: receive(Datagram value) throws IOException

 

import javax.microedition.io.Connector;
import javax.microedition.io.Datagram;
import javax.microedition.io.DatagramConnection;

public class J2MEDatagramSender {
  public static void main(String[] args) throws Exception {
    DatagramConnection sender = (DatagramConnection) Connector
        .open("datagram://localhost:8080");
    int length = 100;
    byte[] buffer = new byte[length];
    for (int i = 0; i < length; i++) {
      buffer[i] = (byte) ('0' + (i % 10));
    }
    Datagram dgram = sender.newDatagram(buffer, buffer.length);
    sender.send(dgram);

    for (int i = 0; i < length; i++) {
      buffer[i] = (byte) 0;
    }
    sender.receive(dgram);
    length = dgram.getLength();
    System.out.println("Received return packet, length is " + length);
    for (int i = 0; i < length; i++) {
      System.out.print(buffer[i] + " ");
    }
  }
}

   
  

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