inserimento codice socket udp

USocket/nbproject/private/private.properties

@@ -1,2 +1,2 @@
 compile.on.save=true
-user.properties.file=/home/boss/.netbeans/16/build.properties
+user.properties.file=/home/docente/.netbeans/16/build.properties

USocket/src/com/mirimatcode/UDatagram.java

@@ -0,0 +1,42 @@
+package com.mirimatcode;
+
+import java.io.IOException;
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+import java.net.InetAddress;
+import java.net.SocketException;
+
+public class UDatagram {
+    
+    static final int dim_buffer = 1024;
+    
+    public static String listenString(int porta) throws SocketException, IOException {
+        
+        DatagramSocket server = new DatagramSocket(porta);
+        byte[] buffer = new byte[dim_buffer];
+        DatagramPacket pacchetto = new DatagramPacket(buffer, dim_buffer);
+        
+        System.out.println("Datagram Server in ascolto");
+        server.receive(pacchetto);
+  
+        System.out.println("Ho ricevuto un messaggio da: " + pacchetto.getAddress().getHostAddress());
+        String messaggio = new String(pacchetto.getData());
+        
+        server.close();
+        
+        return messaggio;
+    }
+    
+    public static void writeString(String host, int porta, String messaggio) throws IOException {
+        
+        InetAddress destinatario = InetAddress.getByName(host);
+        DatagramSocket client = new DatagramSocket();
+        
+        byte[] flusso_messaggio = messaggio.getBytes();
+        DatagramPacket pacchetto = new DatagramPacket(flusso_messaggio, flusso_messaggio.length, destinatario, porta);
+        
+        client.send(pacchetto);
+        
+        client.close();
+    }
+}

USocket/src/com/mirimatcode/USocket.java

@@ -97,6 +97,7 @@ public class USocket {
      * @throws UnknownHostException
      * @throws IOException 
      */
+    
     public static String writeAndListenString(String ip, int porta, String messaggio) throws UnknownHostException, IOException {
         Socket client = new Socket(ip, porta);