source cleanup

projects/UdpExample1/UdpReceiver/src/udpreceiver/UdpReceiver.java

@@ -43,10 +43,9 @@ public class UdpReceiver
                 System.out.println("first value: " + first + " second value: " + second);
             }
         }
-        catch(Exception e)
+        catch(IOException e)
         {
             System.out.println(e);
         }
     }
-    
 }

projects/UdpExample1/UdpSender/src/udpsender/UdpSender.java

-
 package udpsender;
 
 import java.io.*;
@@ -34,7 +33,7 @@ public class UdpSender
             DataOutputStream dos = new DataOutputStream(baos);
 			// alternatives: writeFloat(17.0f); writeInt(17); writeUTF("\"hello MV3500 no really\"");
             dos.writeFloat(17.0f);
-            dos.writeFloat(23.0f);
+            dos.writeFloat(24.0f);
             byte[] buffer = baos.toByteArray();
             
             // Put together a packet to send
@@ -50,14 +49,14 @@ public class UdpSender
             // that you haven't received a duplicate UDP packet, out of
             // order packet, or dropped packet?
             
-            for(int idx = 0; idx < 100; idx++) // avoid infinite send loops in code, can be hard to kill!
+            for(int index = 1; index <= 100; index++) // avoid infinite send loops in code, can be hard to kill!
             {
                udpSocket.send(packet);
                Thread.sleep(1000); // Send 100, one per second
-               System.out.println("Sent packet " + idx + " of 100");
+               System.out.println("Sent packet " + index + " of 100");
             }
         }
-        catch (Exception e)
+        catch (IOException | InterruptedException e)
         {
             System.out.println(e);
         }