From 2a3b45678c51173c3cab028e35c2fb1ef4e262f0 Mon Sep 17 00:00:00 2001
From: ik1g19 <ik1g19@soton.ac.uk>
Date: Sun, 28 Mar 2021 21:18:29 +0100
Subject: [PATCH] add UDP apps
---
UDP/UDPReceiver.class | Bin 0 -> 1520 bytes
UDP/UDPReceiver.java | 17 +++++++++++++++++
UDP/UDPSender.class | Bin 0 -> 1682 bytes
UDP/UDPSender.java | 25 +++++++++++++++++++++++++
4 files changed, 42 insertions(+)
create mode 100644 UDP/UDPReceiver.class
create mode 100644 UDP/UDPReceiver.java
create mode 100644 UDP/UDPSender.class
create mode 100644 UDP/UDPSender.java
diff --git a/UDP/UDPReceiver.class b/UDP/UDPReceiver.class
new file mode 100644
index 0000000000000000000000000000000000000000..07befa1b11b9333b8110949f8cca4d61e61b336b
GIT binary patch
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diff --git a/UDP/UDPReceiver.java b/UDP/UDPReceiver.java
new file mode 100644
index 0000000..d36567c
--- /dev/null
+++ b/UDP/UDPReceiver.java
@@ -0,0 +1,17 @@
+import java.io.*;
+import java.net.*;
+class UDPReceiver {
+ public static void main(String[] args) {
+ try {
+ DatagramSocket socket = new DatagramSocket(4321);
+ byte[] buf = new byte[256];
+ for (int i = 0; i < 10; i++) {
+ DatagramPacket packet = new DatagramPacket(buf, buf.length);
+ socket.receive(packet);
+ System.out.println("receive DatagramPacket " + (new String(packet.getData())).trim() + " " + packet.getAddress() + ":" + packet.getPort());
+ }
+ } catch (Exception e) {
+ System.out.println("error " + e);
+ }
+ }
+}
\ No newline at end of file
diff --git a/UDP/UDPSender.class b/UDP/UDPSender.class
new file mode 100644
index 0000000000000000000000000000000000000000..40c4908b78a9e032b0c66b9dccab0181e747889d
GIT binary patch
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literal 0
HcmV?d00001
diff --git a/UDP/UDPSender.java b/UDP/UDPSender.java
new file mode 100644
index 0000000..fb6cec0
--- /dev/null
+++ b/UDP/UDPSender.java
@@ -0,0 +1,25 @@
+import java.io.*;
+import java.net.*;
+
+class UDPSender{
+ public static void main(String [] args){
+ try{
+ InetAddress address =InetAddress.getByName("isaac-VirtualBox");
+ DatagramSocket socket = new DatagramSocket();
+ for (int i=0;i<10;i++) {
+ byte[] buf = String.valueOf(i).getBytes();
+ DatagramPacket packet = new DatagramPacket(buf, buf.length, address, 4321);
+ socket.send(packet);
+ System.out.println("send DatagramPacket "
+ + new String(packet.getData())
+ + " "
+ + packet.getAddress()
+ + ":"
+ + packet.getPort());
+ Thread.sleep(2000);
+ }
+ } catch(Exception e) {
+ System.out.println("error");
+ }
+ }
+}
--
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