inserimento codice socket udp

.gitignore

@@ -1 +1,148 @@
-/ClientPersistente/dist/
+    # Compiled class file
+    *.class
+     
+    # Log file
+    *.log
+     
+    # BlueJ files
+    *.ctxt
+     
+    # Mobile Tools for Java (J2ME)
+    .mtj.tmp/
+     
+    # Package Files #
+    *.jar
+    *.war
+    *.nar
+    *.ear
+    *.zip
+    *.tar.gz
+    *.rar
+     
+    # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+    hs_err_pid*
+    replay_pid*
+     
+    **/nbproject/private/
+    **/nbproject/Makefile-*.mk
+    **/nbproject/Package-*.bash
+    build/
+    nbbuild/
+    dist/
+    nbdist/
+    .nb-gradle/
+     
+    # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+    .idea/
+    cmake-build-*/
+    # File-based project format
+    *.iws
+    # IntelliJ
+    out/
+    # mpeltonen/sbt-idea plugin
+    .idea_modules/
+    # JIRA plugin
+    atlassian-ide-plugin.xml
+    # Crashlytics plugin (for Android Studio and IntelliJ)
+    com_crashlytics_export_strings.xml
+    crashlytics.properties
+    crashlytics-build.properties
+    fabric.properties
+     
+    ### - NetBeans
+    **/nbproject/private/
+    **/nbproject/Makefile-*.mk
+    **/nbproject/Package-*.bash
+    build/
+    nbbuild/
+    nbdist/
+    .nb-gradle/
+    ### - Visual Studio Code
+    .vscode/*
+    !.vscode/settings.json
+    !.vscode/tasks.json
+    !.vscode/launch.json
+    !.vscode/extensions.json
+    !.vscode/*.code-snippets
+    # Local History for Visual Studio Code
+    .history/
+    # Built Visual Studio Code Extensions
+    *.vsix
+    ### - XCode
+    ## User settings
+    xcuserdata/
+    ## Xcode 8 and earlier
+    *.xcscmblueprint
+    *.xccheckout
+     
+    ##### - Linux
+     
+    *~
+     
+    # temporary files which can be created if a process still has a handle open of a deleted file
+    .fuse_hidden*
+     
+    # KDE directory preferences
+    .directory
+     
+    # Linux trash folder which might appear on any partition or disk
+    .Trash-*
+     
+    # .nfs files are created when an open file is removed but is still being accessed
+    .nfs*
+     
+    ##### - Windows
+     
+    # Windows thumbnail cache files
+    Thumbs.db
+    Thumbs.db:encryptable
+    ehthumbs.db
+    ehthumbs_vista.db
+     
+    # Dump file
+    *.stackdump
+     
+    # Folder config file
+    [Dd]esktop.ini
+     
+    # Recycle Bin used on file shares
+    $RECYCLE.BIN/
+     
+    # Windows Installer files
+    *.cab
+    *.msi
+    *.msix
+    *.msm
+    *.msp
+     
+    # Windows shortcuts
+    *.lnk
+     
+    ##### - MacOS
+     
+    # General
+    .DS_Store
+    .AppleDouble
+    .LSOverride
+     
+    # Icon must end with two \r
+    Icon
+     
+    # Thumbnails
+    ._*
+     
+    # Files that might appear in the root of a volume
+    .DocumentRevisions-V100
+    .fseventsd
+    .Spotlight-V100
+    .TemporaryItems
+    .Trashes
+    .VolumeIcon.icns
+    .com.apple.timemachine.donotpresent
+     
+    # Directories potentially created on remote AFP share
+    .AppleDB
+    .AppleDesktop
+    Network Trash Folder
+    Temporary Items
+    .apdisk

ClientAccademico/build/built-jar.properties

@@ -1,4 +0,0 @@
-#Wed, 01 Feb 2023 15:55:04 +0100
-
-
-/home/boss/Progetti/ClientAccademico=

ClientPersistente/build/built-jar.properties

@@ -1,4 +0,0 @@
-#Thu, 02 Feb 2023 00:11:23 +0100
-
-
-/home/boss/Progetti/Didattica_Socket/ClientPersistente=

ClientSconnesso/build.xml

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- You may freely edit this file. See commented blocks below for -->
+<!-- some examples of how to customize the build. -->
+<!-- (If you delete it and reopen the project it will be recreated.) -->
+<!-- By default, only the Clean and Build commands use this build script. -->
+<!-- Commands such as Run, Debug, and Test only use this build script if -->
+<!-- the Compile on Save feature is turned off for the project. -->
+<!-- You can turn off the Compile on Save (or Deploy on Save) setting -->
+<!-- in the project's Project Properties dialog box.-->
+<project name="ClientSconnesso" default="default" basedir=".">
+    <description>Builds, tests, and runs the project ClientSconnesso.</description>
+    <import file="nbproject/build-impl.xml"/>
+    <!--
+
+    There exist several targets which are by default empty and which can be 
+    used for execution of your tasks. These targets are usually executed 
+    before and after some main targets. They are: 
+
+      -pre-init:                 called before initialization of project properties
+      -post-init:                called after initialization of project properties
+      -pre-compile:              called before javac compilation
+      -post-compile:             called after javac compilation
+      -pre-compile-single:       called before javac compilation of single file
+      -post-compile-single:      called after javac compilation of single file
+      -pre-compile-test:         called before javac compilation of JUnit tests
+      -post-compile-test:        called after javac compilation of JUnit tests
+      -pre-compile-test-single:  called before javac compilation of single JUnit test
+      -post-compile-test-single: called after javac compilation of single JUunit test
+      -pre-jar:                  called before JAR building
+      -post-jar:                 called after JAR building
+      -post-clean:               called after cleaning build products
+
+    (Targets beginning with '-' are not intended to be called on their own.)
+
+    Example of inserting an obfuscator after compilation could look like this:
+
+        <target name="-post-compile">
+            <obfuscate>
+                <fileset dir="${build.classes.dir}"/>
+            </obfuscate>
+        </target>
+
+    For list of available properties check the imported 
+    nbproject/build-impl.xml file. 
+
+
+    Another way to customize the build is by overriding existing main targets.
+    The targets of interest are: 
+
+      -init-macrodef-javac:     defines macro for javac compilation
+      -init-macrodef-junit:     defines macro for junit execution
+      -init-macrodef-debug:     defines macro for class debugging
+      -init-macrodef-java:      defines macro for class execution
+      -do-jar:                  JAR building
+      run:                      execution of project 
+      -javadoc-build:           Javadoc generation
+      test-report:              JUnit report generation
+
+    An example of overriding the target for project execution could look like this:
+
+        <target name="run" depends="ClientSconnesso-impl.jar">
+            <exec dir="bin" executable="launcher.exe">
+                <arg file="${dist.jar}"/>
+            </exec>
+        </target>
+
+    Notice that the overridden target depends on the jar target and not only on 
+    the compile target as the regular run target does. Again, for a list of available 
+    properties which you can use, check the target you are overriding in the
+    nbproject/build-impl.xml file. 
+
+    -->
+</project>

ClientSconnesso/manifest.mf

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+X-COMMENT: Main-Class will be added automatically by build
+

ClientSconnesso/nbproject/genfiles.properties

@@ -0,0 +1,8 @@
+build.xml.data.CRC32=3637ba01
+build.xml.script.CRC32=a66f0622
+build.xml.stylesheet.CRC32=f85dc8f2@1.105.0.48
+# This file is used by a NetBeans-based IDE to track changes in generated files such as build-impl.xml.
+# Do not edit this file. You may delete it but then the IDE will never regenerate such files for you.
+nbproject/build-impl.xml.data.CRC32=3637ba01
+nbproject/build-impl.xml.script.CRC32=2a0a287b
+nbproject/build-impl.xml.stylesheet.CRC32=12e0a6c2@1.105.0.48

ClientSconnesso/nbproject/private/private.properties

@@ -0,0 +1,2 @@
+compile.on.save=true
+user.properties.file=/home/docente/.netbeans/16/build.properties

ClientSconnesso/nbproject/private/private.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project-private xmlns="http://www.netbeans.org/ns/project-private/1">
+    <editor-bookmarks xmlns="http://www.netbeans.org/ns/editor-bookmarks/2" lastBookmarkId="0"/>
+</project-private>

ClientSconnesso/nbproject/project.properties

@@ -0,0 +1,97 @@
+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=${build.generated.sources.dir}/ap-source-output
+build.classes.dir=${build.dir}/classes
+build.classes.excludes=**/*.java,**/*.form
+# This directory is removed when the project is cleaned:
+build.dir=build
+build.generated.dir=${build.dir}/generated
+build.generated.sources.dir=${build.dir}/generated-sources
+# Only compile against the classpath explicitly listed here:
+build.sysclasspath=ignore
+build.test.classes.dir=${build.dir}/test/classes
+build.test.results.dir=${build.dir}/test/results
+# Uncomment to specify the preferred debugger connection transport:
+#debug.transport=dt_socket
+debug.classpath=\
+    ${run.classpath}
+debug.modulepath=\
+    ${run.modulepath}
+debug.test.classpath=\
+    ${run.test.classpath}
+debug.test.modulepath=\
+    ${run.test.modulepath}
+# Files in build.classes.dir which should be excluded from distribution jar
+dist.archive.excludes=
+# This directory is removed when the project is cleaned:
+dist.dir=dist
+dist.jar=${dist.dir}/ClientSconnesso.jar
+dist.javadoc.dir=${dist.dir}/javadoc
+dist.jlink.dir=${dist.dir}/jlink
+dist.jlink.output=${dist.jlink.dir}/ClientSconnesso
+excludes=
+file.reference.USocket.jar=/home/docente/Modelli/USocket.jar
+includes=**
+jar.compress=false
+javac.classpath=\
+    ${file.reference.USocket.jar}
+# Space-separated list of extra javac options
+javac.compilerargs=
+javac.deprecation=false
+javac.external.vm=true
+javac.modulepath=
+javac.processormodulepath=
+javac.processorpath=\
+    ${javac.classpath}
+javac.source=17
+javac.target=17
+javac.test.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+javac.test.modulepath=\
+    ${javac.modulepath}
+javac.test.processorpath=\
+    ${javac.test.classpath}
+javadoc.additionalparam=
+javadoc.author=false
+javadoc.encoding=${source.encoding}
+javadoc.html5=false
+javadoc.noindex=false
+javadoc.nonavbar=false
+javadoc.notree=false
+javadoc.private=false
+javadoc.splitindex=true
+javadoc.use=true
+javadoc.version=false
+javadoc.windowtitle=
+# The jlink additional root modules to resolve
+jlink.additionalmodules=
+# The jlink additional command line parameters
+jlink.additionalparam=
+jlink.launcher=true
+jlink.launcher.name=ClientSconnesso
+main.class=clientsconnesso.ClientSconnesso
+manifest.file=manifest.mf
+meta.inf.dir=${src.dir}/META-INF
+mkdist.disabled=false
+platform.active=default_platform
+run.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+# Space-separated list of JVM arguments used when running the project.
+# You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
+# To set system properties for unit tests define test-sys-prop.name=value:
+run.jvmargs=
+run.modulepath=\
+    ${javac.modulepath}
+run.test.classpath=\
+    ${javac.test.classpath}:\
+    ${build.test.classes.dir}
+run.test.modulepath=\
+    ${javac.test.modulepath}
+source.encoding=UTF-8
+src.dir=src
+test.src.dir=test

ClientSconnesso/nbproject/project.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://www.netbeans.org/ns/project/1">
+    <type>org.netbeans.modules.java.j2seproject</type>
+    <configuration>
+        <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
+            <name>ClientSconnesso</name>
+            <source-roots>
+                <root id="src.dir"/>
+            </source-roots>
+            <test-roots>
+                <root id="test.src.dir"/>
+            </test-roots>
+        </data>
+    </configuration>
+</project>

ClientSconnesso/src/clientsconnesso/ClientSconnesso.java

@@ -0,0 +1,19 @@
+package clientsconnesso;
+
+import com.mirimatcode.UDatagram;
+import java.io.IOException;
+
+public class ClientSconnesso {
+
+    public static void main(String[] args) {
+        // TODO code application logic here
+        String messaggio = "Ciao amico server";
+        
+        try {
+            UDatagram.writeString("192.168.1.175", 5000, messaggio);
+        } catch (IOException ex) {
+            System.out.println(ex.getMessage());
+        }
+    }
+    
+}

ServerAccademico/build/built-jar.properties

@@ -1,4 +0,0 @@
-#Wed, 01 Feb 2023 15:45:34 +0100
-
-
-/home/boss/Progetti/ServerAccademico=

ServerAccademico/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

ServerAccademico/nbproject/private/private.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project-private xmlns="http://www.netbeans.org/ns/project-private/1">
+    <editor-bookmarks xmlns="http://www.netbeans.org/ns/editor-bookmarks/2" lastBookmarkId="0"/>
+</project-private>

ServerPersistente/build/built-jar.properties

@@ -1,4 +0,0 @@
-#Thu, 02 Feb 2023 00:11:26 +0100
-
-
-/home/boss/Progetti/Didattica_Socket/ServerPersistente=

ServerSconnesso/build.xml

@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- You may freely edit this file. See commented blocks below for -->
+<!-- some examples of how to customize the build. -->
+<!-- (If you delete it and reopen the project it will be recreated.) -->
+<!-- By default, only the Clean and Build commands use this build script. -->
+<!-- Commands such as Run, Debug, and Test only use this build script if -->
+<!-- the Compile on Save feature is turned off for the project. -->
+<!-- You can turn off the Compile on Save (or Deploy on Save) setting -->
+<!-- in the project's Project Properties dialog box.-->
+<project name="ServerSconnesso" default="default" basedir=".">
+    <description>Builds, tests, and runs the project ServerSconnesso.</description>
+    <import file="nbproject/build-impl.xml"/>
+    <!--
+
+    There exist several targets which are by default empty and which can be 
+    used for execution of your tasks. These targets are usually executed 
+    before and after some main targets. They are: 
+
+      -pre-init:                 called before initialization of project properties
+      -post-init:                called after initialization of project properties
+      -pre-compile:              called before javac compilation
+      -post-compile:             called after javac compilation
+      -pre-compile-single:       called before javac compilation of single file
+      -post-compile-single:      called after javac compilation of single file
+      -pre-compile-test:         called before javac compilation of JUnit tests
+      -post-compile-test:        called after javac compilation of JUnit tests
+      -pre-compile-test-single:  called before javac compilation of single JUnit test
+      -post-compile-test-single: called after javac compilation of single JUunit test
+      -pre-jar:                  called before JAR building
+      -post-jar:                 called after JAR building
+      -post-clean:               called after cleaning build products
+
+    (Targets beginning with '-' are not intended to be called on their own.)
+
+    Example of inserting an obfuscator after compilation could look like this:
+
+        <target name="-post-compile">
+            <obfuscate>
+                <fileset dir="${build.classes.dir}"/>
+            </obfuscate>
+        </target>
+
+    For list of available properties check the imported 
+    nbproject/build-impl.xml file. 
+
+
+    Another way to customize the build is by overriding existing main targets.
+    The targets of interest are: 
+
+      -init-macrodef-javac:     defines macro for javac compilation
+      -init-macrodef-junit:     defines macro for junit execution
+      -init-macrodef-debug:     defines macro for class debugging
+      -init-macrodef-java:      defines macro for class execution
+      -do-jar:                  JAR building
+      run:                      execution of project 
+      -javadoc-build:           Javadoc generation
+      test-report:              JUnit report generation
+
+    An example of overriding the target for project execution could look like this:
+
+        <target name="run" depends="ServerSconnesso-impl.jar">
+            <exec dir="bin" executable="launcher.exe">
+                <arg file="${dist.jar}"/>
+            </exec>
+        </target>
+
+    Notice that the overridden target depends on the jar target and not only on 
+    the compile target as the regular run target does. Again, for a list of available 
+    properties which you can use, check the target you are overriding in the
+    nbproject/build-impl.xml file. 
+
+    -->
+    <target name="-post-jar">
+
+        <!-- Change the value to the name of the final jar without .jar -->
+        <property name="store.jar.name" value="ServerSconnesso"/>
+
+        <!-- don't edit below this line -->
+        <property name="store.dir" value="dist"/>
+        <property name="temp.dir" value="temp"/>
+        <property name="store.jar" value="${store.dir}/${store.jar.name}.jar"/>
+
+        <echo message="Packaging ${application.title} into a single JAR at ${store.jar}"/>
+
+        <delete dir="${temp.dir}"/>
+        <mkdir dir="${temp.dir}"/>
+
+        <jar destfile="${temp.dir}/temp_final.jar" filesetmanifest="skip">
+            <zipgroupfileset dir="dist" includes="*.jar"/>
+            <zipgroupfileset dir="dist/lib" includes="*.jar"/>
+
+            <manifest>
+                <attribute name="Main-Class" value="${main.class}"/>
+            </manifest>
+        </jar>
+
+        <delete dir="${store.dir}"/>
+
+        <zip destfile="${store.jar}">
+            <zipfileset src="${temp.dir}/temp_final.jar"
+            excludes="META-INF/*.SF, META-INF/*.DSA, META-INF/*.RSA"/>
+        </zip>
+
+        <delete dir="${temp.dir}"/>
+
+    </target>
+</project>

ServerSconnesso/build/built-jar.properties

@@ -0,0 +1,4 @@
+#Fri, 03 Feb 2023 12:12:07 +0100
+
+
+/home/docente/Progetti/ServerSconnesso=

ServerSconnesso/manifest.mf

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+X-COMMENT: Main-Class will be added automatically by build
+

ServerSconnesso/nbproject/genfiles.properties

@@ -0,0 +1,8 @@
+build.xml.data.CRC32=ac40c2b2
+build.xml.script.CRC32=5da9665b
+build.xml.stylesheet.CRC32=f85dc8f2@1.105.0.48
+# This file is used by a NetBeans-based IDE to track changes in generated files such as build-impl.xml.
+# Do not edit this file. You may delete it but then the IDE will never regenerate such files for you.
+nbproject/build-impl.xml.data.CRC32=ac40c2b2
+nbproject/build-impl.xml.script.CRC32=80d3de00
+nbproject/build-impl.xml.stylesheet.CRC32=12e0a6c2@1.105.0.48

ServerSconnesso/nbproject/private/private.properties

@@ -0,0 +1,2 @@
+compile.on.save=true
+user.properties.file=/home/docente/.netbeans/16/build.properties

ServerSconnesso/nbproject/private/private.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project-private xmlns="http://www.netbeans.org/ns/project-private/1">
+    <editor-bookmarks xmlns="http://www.netbeans.org/ns/editor-bookmarks/2" lastBookmarkId="0"/>
+</project-private>

ServerSconnesso/nbproject/project.properties

@@ -0,0 +1,97 @@
+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=${build.generated.sources.dir}/ap-source-output
+build.classes.dir=${build.dir}/classes
+build.classes.excludes=**/*.java,**/*.form
+# This directory is removed when the project is cleaned:
+build.dir=build
+build.generated.dir=${build.dir}/generated
+build.generated.sources.dir=${build.dir}/generated-sources
+# Only compile against the classpath explicitly listed here:
+build.sysclasspath=ignore
+build.test.classes.dir=${build.dir}/test/classes
+build.test.results.dir=${build.dir}/test/results
+# Uncomment to specify the preferred debugger connection transport:
+#debug.transport=dt_socket
+debug.classpath=\
+    ${run.classpath}
+debug.modulepath=\
+    ${run.modulepath}
+debug.test.classpath=\
+    ${run.test.classpath}
+debug.test.modulepath=\
+    ${run.test.modulepath}
+# Files in build.classes.dir which should be excluded from distribution jar
+dist.archive.excludes=
+# This directory is removed when the project is cleaned:
+dist.dir=dist
+dist.jar=${dist.dir}/ServerSconnesso.jar
+dist.javadoc.dir=${dist.dir}/javadoc
+dist.jlink.dir=${dist.dir}/jlink
+dist.jlink.output=${dist.jlink.dir}/ServerSconnesso
+excludes=
+file.reference.USocket.jar=/home/docente/Modelli/USocket.jar
+includes=**
+jar.compress=false
+javac.classpath=\
+    ${file.reference.USocket.jar}
+# Space-separated list of extra javac options
+javac.compilerargs=
+javac.deprecation=false
+javac.external.vm=true
+javac.modulepath=
+javac.processormodulepath=
+javac.processorpath=\
+    ${javac.classpath}
+javac.source=17
+javac.target=17
+javac.test.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+javac.test.modulepath=\
+    ${javac.modulepath}
+javac.test.processorpath=\
+    ${javac.test.classpath}
+javadoc.additionalparam=
+javadoc.author=false
+javadoc.encoding=${source.encoding}
+javadoc.html5=false
+javadoc.noindex=false
+javadoc.nonavbar=false
+javadoc.notree=false
+javadoc.private=false
+javadoc.splitindex=true
+javadoc.use=true
+javadoc.version=false
+javadoc.windowtitle=
+# The jlink additional root modules to resolve
+jlink.additionalmodules=
+# The jlink additional command line parameters
+jlink.additionalparam=
+jlink.launcher=true
+jlink.launcher.name=ServerSconnesso
+main.class=serversconnesso.ServerSconnesso
+manifest.file=manifest.mf
+meta.inf.dir=${src.dir}/META-INF
+mkdist.disabled=false
+platform.active=default_platform
+run.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+# Space-separated list of JVM arguments used when running the project.
+# You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
+# To set system properties for unit tests define test-sys-prop.name=value:
+run.jvmargs=
+run.modulepath=\
+    ${javac.modulepath}
+run.test.classpath=\
+    ${javac.test.classpath}:\
+    ${build.test.classes.dir}
+run.test.modulepath=\
+    ${javac.test.modulepath}
+source.encoding=UTF-8
+src.dir=src
+test.src.dir=test

ServerSconnesso/nbproject/project.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://www.netbeans.org/ns/project/1">
+    <type>org.netbeans.modules.java.j2seproject</type>
+    <configuration>
+        <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
+            <name>ServerSconnesso</name>
+            <source-roots>
+                <root id="src.dir"/>
+            </source-roots>
+            <test-roots>
+                <root id="test.src.dir"/>
+            </test-roots>
+        </data>
+    </configuration>
+</project>

ServerSconnesso/src/serversconnesso/ServerSconnesso.java

@@ -0,0 +1,17 @@
+package serversconnesso;
+
+import com.mirimatcode.UDatagram;
+import java.io.IOException;
+
+public class ServerSconnesso {
+
+    public static void main(String[] args) {
+        
+        try {
+            String messaggio_ricevuto = UDatagram.listenString(5000);
+            System.out.println("Ho ricevuto qualcosa del genere: " + messaggio_ricevuto);
+        } catch (IOException ex) {
+            System.out.println(ex.getMessage());
+        }
+    }
+}

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);