Java是一種面向對象的編程語言，被廣泛應用于各種領域中的軟件開發。Java通信可以實現不同設備之間的信息交流。

import java.net.*;
import java.io.*;
public class UDPClient{
public static void main(String args[]){
DatagramSocket aSocket = null;
try {
aSocket = new DatagramSocket();    
byte [] m = args[0].getBytes();
InetAddress aHost = InetAddress.getByName(args[1]);
int serverPort = 6789;                                                     
DatagramPacket request =
new DatagramPacket(m,  args[0].length(), aHost, serverPort);
aSocket.send(request);                          
byte[] buffer = new byte[1000];
DatagramPacket reply = new DatagramPacket(buffer, buffer.length); 
aSocket.receive(reply);
System.out.println("Reply: " + new String(reply.getData()));
}catch (SocketException e){
System.out.println("Socket: " + e.getMessage());
}catch (IOException e){
System.out.println("IO: " + e.getMessage());
}finally {
if(aSocket != null) aSocket.close();
}
}
}

C語言是一種強大的編程語言，在嵌入式系統和網絡編程中得到了廣泛的應用。C語言通信可以實現各種設備之間的消息傳遞。

#include#include#include#include#include#define PORT 9096
int main(void) {
int sockfd;
struct sockaddr_in servaddr, cliaddr;
sockfd = socket(AF_INET, SOCK_DGRAM, 0);
memset(&servaddr, 0, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_addr.s_addr = inet_addr("127.0.0.1");
servaddr.sin_port = htons(PORT);
char buffer[1024];
printf("Enter a message to send: ");
fgets(buffer, sizeof(buffer), stdin);
sendto(sockfd, buffer, strlen(buffer), 0,
(struct sockaddr*)&servaddr, sizeof(servaddr));
printf("Message sent!\n");
close(sockfd);
return 0;
}