diff --git a/assignments/.gitkeep b/assignments/.gitkeep
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/assignments/Homework1/.gitkeep b/assignments/Homework1/.gitkeep
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/presentations/06_UDP_UserDatagramProtocol.pptx b/presentations/06_UDP_UserDatagramProtocol.pptx
index f18c543ae76a2beb5d6624d42a2966b09d1a66fe..dc0d4dde3c4d2b7dca0a65d3513431cbc5828332 100644
Binary files a/presentations/06_UDP_UserDatagramProtocol.pptx and b/presentations/06_UDP_UserDatagramProtocol.pptx differ
diff --git a/projects/TcpExample1/build/classes/tcpexample1/TcpExample.class b/projects/TcpExample1/build/classes/tcpexample1/TcpExample.class
index 792b4231c0997465ab6a152524bb62a91d2263e9..1a95c4493fc4e4952d34a93942ad110adcb51055 100644
Binary files a/projects/TcpExample1/build/classes/tcpexample1/TcpExample.class and b/projects/TcpExample1/build/classes/tcpexample1/TcpExample.class differ
diff --git a/projects/TcpExample1/nbproject/project.properties b/projects/TcpExample1/nbproject/project.properties
index 176c24d34cd8ed21957398e09ba2a88b34591daf..c7a41ca2973ef56e5f05a38966015679449ae723 100644
--- a/projects/TcpExample1/nbproject/project.properties
+++ b/projects/TcpExample1/nbproject/project.properties
@@ -1,9 +1,10 @@
 annotation.processing.enabled=true
 annotation.processing.enabled.in.editor=false
-annotation.processing.processor.options=
 annotation.processing.processors.list=
 annotation.processing.run.all.processors=true
 annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
+application.title=TcpExample1
+application.vendor=don
 build.classes.dir=${build.dir}/classes
 build.classes.excludes=**/*.java,**/*.form
 # This directory is removed when the project is cleaned:
@@ -26,6 +27,7 @@ dist.archive.excludes=
 dist.dir=dist
 dist.jar=${dist.dir}/TcpExample1.jar
 dist.javadoc.dir=${dist.dir}/javadoc
+endorsed.classpath=
 excludes=
 includes=**
 jar.compress=false
diff --git a/projects/TcpExample2/build/classes/tcpexample2/TcpExample2.class b/projects/TcpExample2/build/classes/tcpexample2/TcpExample2.class
index a2dbcc43331638a36670b128f67ae1fcbf4f6ce3..f63e0745cb09cbafd204ec4fee042e0e75875f26 100644
Binary files a/projects/TcpExample2/build/classes/tcpexample2/TcpExample2.class and b/projects/TcpExample2/build/classes/tcpexample2/TcpExample2.class differ
diff --git a/projects/UdpExample1/UdpReceiver/build/classes/udpreceiver/UdpReceiver.class b/projects/UdpExample1/UdpReceiver/build/classes/udpreceiver/UdpReceiver.class
index 6170482984adc1600429e7d9550db19a8d874bfe..b44804a99030dc701f3f574e2c42f27cdfc19b17 100644
Binary files a/projects/UdpExample1/UdpReceiver/build/classes/udpreceiver/UdpReceiver.class and b/projects/UdpExample1/UdpReceiver/build/classes/udpreceiver/UdpReceiver.class differ
diff --git a/projects/UdpExample1/UdpSender/build/classes/udpsender/UdpSender.class b/projects/UdpExample1/UdpSender/build/classes/udpsender/UdpSender.class
index 35d8d91fccf48916a632910697f8f68d0b2f4092..ecd18b6105e34d5d997a66b62166ecc16599871f 100644
Binary files a/projects/UdpExample1/UdpSender/build/classes/udpsender/UdpSender.class and b/projects/UdpExample1/UdpSender/build/classes/udpsender/UdpSender.class differ