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		<title>Come installare Java per la programmazione</title>
		<link>https://www.rdtech.it/come-installare-java/</link>
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		<dc:creator><![CDATA[Matteo Veraldi]]></dc:creator>
		<pubDate>Tue, 18 Jul 2023 09:01:02 +0000</pubDate>
				<category><![CDATA[Education]]></category>
		<category><![CDATA[Java]]></category>
		<category><![CDATA[corso]]></category>
		<category><![CDATA[eclipse]]></category>
		<category><![CDATA[ide]]></category>
		<category><![CDATA[installare]]></category>
		<category><![CDATA[java]]></category>
		<category><![CDATA[vscode]]></category>
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					<description><![CDATA[<p>Installare Java può non essere facile per chi è alle prime armi.&#160; In questo articolo verrà spiegato passo passo come fare, proponendo due metodi diversi. Che cos&#8217;è Java? Java è un linguaggio di programmazione ad alto livello, fortemente tipizzato, multi-paradigma e indipendente dalla piattaforma di esecuzione, ideato da James Gosling nei primi anni &#8217;90.&#160;Si usa per programmare una vasta gamma di applicazioni tra cui:&#160;&#8211; lo sviluppo web- le analisi dei big data- lo sviluppo di applicazioni mobile.&#160;In RD Tech lo usiamo principalmente per lo sviluppo back-end di applicazioni web di tipo enterprise.&#160;&#160; Come si installa Java? Per programmare in Java,…</p>
<p>L'articolo <a rel="nofollow" href="https://www.rdtech.it/come-installare-java/">Come installare Java per la programmazione</a> proviene da <a rel="nofollow" href="https://www.rdtech.it">RD Tech</a>.</p>
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										<content:encoded><![CDATA[		<div data-elementor-type="wp-post" data-elementor-id="1503" class="elementor elementor-1503">
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.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}</style>				<p>Installare Java può non essere facile per chi è alle prime armi. <br /><span style="font-size: inherit; text-align: inherit; color: var(--color); font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);">In questo articolo verrà spiegato passo passo come fare, proponendo due metodi diversi.<br /></span></p>						</div>
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			<style>/*! elementor - v3.12.0 - 29-03-2023 */
.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}</style><h2 class="elementor-heading-title elementor-size-default">Che cos'è Java?</h2>		</div>
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							<div>Java è <i>un linguaggio di programmazione ad alto livello, fortemente tipizzato, multi-paradigma e indipendente dalla piattaforma di esecuzione</i>, ideato da James Gosling nei primi anni &#8217;90.</div><div> Si usa per programmare una vasta gamma di applicazioni tra cui: </div><div>&#8211; lo sviluppo web</div><div>&#8211; le analisi dei big data</div><div>&#8211; lo sviluppo di applicazioni mobile.</div><div> </div><div>In RD Tech lo usiamo principalmente per lo sviluppo back-end di applicazioni web di tipo enterprise.</div><div><div><div> <span style="color: var(--color); font-size: inherit; font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-align: inherit; text-transform: var(--textTransform);"> </span></div></div></div>						</div>
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			<h2 class="elementor-heading-title elementor-size-default">Come si installa Java?</h2>		</div>
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							<div>Per programmare in Java, è necessario installare alcuni software sul computer.</div><div>I due metodi di installazione proposti sono <a href="#eclipse">Eclipse</a> e <a href="#vscode">Visual Studio Code</a>.</div><div> </div><div>I programmi come Eclipse sono inclusi nella categoria di IDE <span style="color: var(--color); font-size: inherit; text-align: inherit; font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);"> </span><span style="color: var(--color); font-size: inherit; text-align: inherit; font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);">(Integrated Development Environment)</span><span style="color: var(--color); font-size: inherit; text-align: inherit; font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);">, significa Ambiente di Sviluppo Integrato perché ha tutto ciò che serve per installare, gestire, scrivere, eseguire ed analizzare il codice Java.</span></div><div>Dei due metodi proposti, questo è il più semplice e veloce.</div><div><span style="color: var(--color); font-size: inherit; text-align: inherit; font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);"> </span></div><div><span style="color: var(--color); font-size: inherit; text-align: inherit; font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);">I programmi come Visual Studio Code sono inclusi nella categoria di editor di testo avanzati. <br />Visual Studio Code è open source, estensibile e ottimizzato per le operazioni comuni di sviluppo software. <br />Per usarlo con Java è necessario <a href="#java">installare manualmente il &#8220;Java Development Kit&#8221;</a> sul proprio computer, e sull&#8217;editor di testo bisogna aggiungere alcune estensioni per rendere più agevole l&#8217;esperienza di sviluppo.</span></div><div><span style="color: var(--color); font-size: inherit; text-align: inherit; font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);"> </span></div>						</div>
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			<h3 class="elementor-heading-title elementor-size-default">Installazione di Eclipse</h3>		</div>
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							<p>In <a href="https://www.eclipse.org/downloads/">questo sito web</a> bisogna premere sul pulsante Download in basso a sinistra, verrà scaricato un file eseguibile che contiene il Wizard &#8220;eclipseinstaller&#8221;.</p>						</div>
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							<p>Per Java è sufficiente scegliere la versione &#8220;Eclipse IDE for Java Developers&#8221;.</p>						</div>
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							<p>Se il kit di sviluppo Java non è presente nel sistema, si potrà scegliere di delegare l&#8217;installazione ad Eclipse selezionando una versione di Java VM dal menù a tendina.</p><p>Se invece è presente, basta specificare il percorso di installazione</p>						</div>
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				<b>Tip:</b> se Java è già presente nel sistema e si vuole usare quella versione invece che delegare ad Eclipse, si possono eseguire questi comandi per ottenerne il percorso:<br>
<b>Windows</b>: Apri la PowerShell -&gt; Digita <i>`$Env:JAVA_HOME`</i> <br>
<b>MacOS e Linux</b>: Apri il terminale -&gt; Digita <i>`echo $JAVA_HOME`</i> <br>
Il percorso restituito dal terminale sarà quello da specificare in fase di installazione.			</p>
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							<p>Una volta terminata l&#8217;installazione, Eclipse sarà già utilizzabile per lo sviluppo.</p><p>Adesso puoi andare al <a style="font-size: inherit; text-align: inherit; font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);" href="#helloworld" rel="noopener">paragrafo Hello World!</a></p>						</div>
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		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-9c6bfc8 ct-section-stretched elementor-section-full_width elementor-section-height-default elementor-section-height-default" data-id="9c6bfc8" data-element_type="section">
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								<div class="elementor-element elementor-element-b76a088 elementor-widget elementor-widget-menu-anchor" data-id="b76a088" data-element_type="widget" data-widget_type="menu-anchor.default">
				<div class="elementor-widget-container">
					<div id="vscode" class="elementor-menu-anchor"></div>
				</div>
				</div>
				<div class="elementor-element elementor-element-1ead854 elementor-widget elementor-widget-heading" data-id="1ead854" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
			<h3 class="elementor-heading-title elementor-size-default">Installazione di Visual Studio Code</h3>		</div>
				</div>
				<div class="elementor-element elementor-element-41ded2f elementor-widget elementor-widget-text-editor" data-id="41ded2f" data-element_type="widget" data-widget_type="text-editor.default">
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							<p>In <a href="https://code.visualstudio.com/">questo sito web</a> bisogna premere sul pulsante Scarica, verrà scaricato un file eseguibile che si dovrà aprire al termine. I passaggi di installazione sono guidati.</p><p>Una volta eseguito Visual Studio Code,  bisogna aprire il pannello &#8220;Estensioni&#8221; cliccando sul bottone rappresentato nell&#8217;immagine qui sotto:</p><p> </p>						</div>
				</div>
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															<img loading="lazy" decoding="async" width="47" height="300" src="https://www.rdtech.it/wp-content/uploads/2023/07/vscode-sidebar-47x300.png" class="attachment-medium size-medium wp-image-1599" alt="" srcset="https://www.rdtech.it/wp-content/uploads/2023/07/vscode-sidebar-47x300.png 47w, https://www.rdtech.it/wp-content/uploads/2023/07/vscode-sidebar.png 106w" sizes="auto, (max-width: 47px) 100vw, 47px" />															</div>
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				<div class="elementor-element elementor-element-e6af5ed elementor-widget elementor-widget-text-editor" data-id="e6af5ed" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
							<p>Scrivendo &#8220;vscjava.vscode-java-pack&#8221; nella barra di ricerca del pannello, apparirà un &#8220;Extension Pack&#8221;, contiene tutte le estensioni necessarie per sviluppare in Java, può essere installato premendo su &#8220;Install&#8221;.</p>						</div>
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															<img loading="lazy" decoding="async" width="300" height="201" src="https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-115724-300x201.png" class="attachment-medium size-medium wp-image-1600" alt="" srcset="https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-115724-300x201.png 300w, https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-115724.png 573w" sizes="auto, (max-width: 300px) 100vw, 300px" />															</div>
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		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-1fc171a elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="1fc171a" data-element_type="section">
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				<div class="elementor-widget-container">
					<div id="java" class="elementor-menu-anchor"></div>
				</div>
				</div>
				<div class="elementor-element elementor-element-5045dda elementor-widget elementor-widget-heading" data-id="5045dda" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
			<h3 class="elementor-heading-title elementor-size-default">Installa Java SDK</h3>		</div>
				</div>
				<div class="elementor-element elementor-element-6425be0 elementor-widget elementor-widget-text-editor" data-id="6425be0" data-element_type="widget" data-widget_type="text-editor.default">
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							<p>A differenza di Eclipse, Visual Studio Code non gestisce le installazioni Java. Bisogna farlo manualmente.</p>						</div>
				</div>
				<div class="elementor-element elementor-element-37ce6eb elementor-widget elementor-widget-heading" data-id="37ce6eb" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
			<h4 class="elementor-heading-title elementor-size-medium">Windows</h4>		</div>
				</div>
				<div class="elementor-element elementor-element-5f729da elementor-widget elementor-widget-text-editor" data-id="5f729da" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
							<p>Il metodo proposto usa Scoop come gestore di pacchetti per Windows.<br /><span style="font-size: inherit; text-align: inherit; color: var(--color); font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);">Si installa </span><a style="font-size: inherit; text-align: inherit; font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);" href="https://scoop.sh/">da questo sito</a><span style="font-size: inherit; text-align: inherit; color: var(--color); font-style: var(--fontStyle, inherit); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);"> seguendo i passi descritti in &#8220;Quickstart&#8221;.</span></p><p>1. Tramite PowerShell, bisogna installare il &#8220;bucket&#8221; di Java per Scoop:<br /><em>scoop bucket add java</em></p><p>2. In seguito, si può installare la versione più recente di Java (OpenSDK).<br /><em>scoop install java/openjdk</em></p><p>3. I comandi seguenti servono per inserire il percorso di Java tra le variabili d&#8217;ambiente:</p><pre><em>[System.Environment]::SetEnvironmentVariable("JAVA_HOME", "Incolla qui il percorso di installazione di Java JDK")<br /></em><em style="color: var(--color); font-weight: var(--fontWeight); letter-spacing: var(--letterSpacing); text-transform: var(--textTransform);">[System.Environment]::SetEnvironmentVariable("Path", [System.Environment]::GetEnvironmentVariable('Path', [System.EnvironmentVariableTarget]::Machine) + ";$($env:JAVA_HOME)\bin")</em></pre><p>Una volta aperta una nuova PowerShell e digitato:<br /><em>java &#8211;version</em> <br />apparirà l&#8217;output della Java Virtual Machine. L&#8217;installazione sarà completa.</p>						</div>
				</div>
				<div class="elementor-element elementor-element-2a81373 elementor-widget elementor-widget-heading" data-id="2a81373" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
			<h4 class="elementor-heading-title elementor-size-medium">Mac OSX</h4>		</div>
				</div>
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				<div class="elementor-widget-container">
							<p>Installando Homebrew seguendo le istruzioni <a href="https://brew.sh/index_it">su questo sito</a>, è sufficiente digitare questo comando e aspettare che l&#8217;operazione sia completata:</p><p><em>brew install openjdk</em></p>						</div>
				</div>
					</div>
		</div>
							</div>
		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-69d0c11 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="69d0c11" data-element_type="section">
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				<div class="elementor-widget-container">
					<div id="helloworld" class="elementor-menu-anchor"></div>
				</div>
				</div>
				<div class="elementor-element elementor-element-149f530 elementor-widget elementor-widget-heading" data-id="149f530" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
			<h2 class="elementor-heading-title elementor-size-default">Hello World!</h2>		</div>
				</div>
				<div class="elementor-element elementor-element-17f0340 elementor-widget elementor-widget-text-editor" data-id="17f0340" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
							<p>Per capire se la configurazione dell&#8217;ambiente di sviluppo è andato a buon fine, è utile scrivere <a href="https://it.wikipedia.org/wiki/Hello_world">un programma Hello World!</a>.</p><p>Crea una cartella sul tuo computer, e all&#8217;interno scrivi un file HelloWorld.java, incollando questo codice:</p>						</div>
				</div>
				<div class="elementor-element elementor-element-a59c038 elementor-widget elementor-widget-code-highlight" data-id="a59c038" data-element_type="widget" data-widget_type="code-highlight.default">
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					<div class="prismjs-default copy-to-clipboard ">
			<pre data-line="" class="highlight-height language-java line-numbers">
				<code readonly="true" class="language-java">
					<xmp>class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello World!");
    }
}</xmp>
				</code>
			</pre>
		</div>
				</div>
				</div>
				<div class="elementor-element elementor-element-6545e6f elementor-widget elementor-widget-heading" data-id="6545e6f" data-element_type="widget" data-widget_type="heading.default">
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			<h3 class="elementor-heading-title elementor-size-medium">Eclipse</h3>		</div>
				</div>
				<div class="elementor-element elementor-element-0d5817c elementor-widget elementor-widget-text-editor" data-id="0d5817c" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
							<p>Una volta salvato il file, clicca sul pulsante verde a forma di &#8220;play&#8221; subito sotto la scritta &#8220;Refactor&#8221; sulla barra in alto.</p>						</div>
				</div>
				<div class="elementor-element elementor-element-2dc72c9 elementor-widget elementor-widget-image" data-id="2dc72c9" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="1024" height="869" src="https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-123517-1024x869.png" class="attachment-large size-large wp-image-1613" alt="" srcset="https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-123517-1024x869.png 1024w, https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-123517-300x255.png 300w, https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-123517-768x652.png 768w, https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-123517.png 1272w" sizes="auto, (max-width: 1024px) 100vw, 1024px" />															</div>
				</div>
				<div class="elementor-element elementor-element-6b3d4a9 elementor-widget elementor-widget-text-editor" data-id="6b3d4a9" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
							<p>La console dovrebbe restituire la scritta &#8220;Hello World&#8221;.</p>						</div>
				</div>
				<div class="elementor-element elementor-element-78152d0 elementor-widget elementor-widget-heading" data-id="78152d0" data-element_type="widget" data-widget_type="heading.default">
				<div class="elementor-widget-container">
			<h3 class="elementor-heading-title elementor-size-medium">Visual Studio Code</h3>		</div>
				</div>
				<div class="elementor-element elementor-element-a7cd378 elementor-widget elementor-widget-text-editor" data-id="a7cd378" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
							<p>Una volta salvato il file, clicca sul pulsante a forma di &#8220;play&#8221; in alto a destra.</p>						</div>
				</div>
				<div class="elementor-element elementor-element-46539f5 elementor-widget elementor-widget-image" data-id="46539f5" data-element_type="widget" data-widget_type="image.default">
				<div class="elementor-widget-container">
															<img loading="lazy" decoding="async" width="1024" height="481" src="https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-123943-1024x481.png" class="attachment-large size-large wp-image-1614" alt="" srcset="https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-123943-1024x481.png 1024w, https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-123943-300x141.png 300w, https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-123943-768x361.png 768w, https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-123943-1536x722.png 1536w, https://www.rdtech.it/wp-content/uploads/2023/07/Screenshot-2023-07-10-123943.png 1920w" sizes="auto, (max-width: 1024px) 100vw, 1024px" />															</div>
				</div>
					</div>
		</div>
							</div>
		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-280efad elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="280efad" data-element_type="section">
						<div class="elementor-container elementor-column-gap-default">
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				<div class="elementor-widget-container">
			<h2 class="elementor-heading-title elementor-size-default">Conclusioni</h2>		</div>
				</div>
				<div class="elementor-element elementor-element-7857dad elementor-widget elementor-widget-text-editor" data-id="7857dad" data-element_type="widget" data-widget_type="text-editor.default">
				<div class="elementor-widget-container">
							<p>Se hai seguito tutti i passi correttamente sei pronto a sviluppare in Java. Se hai riscontrato problemi o hai ulteriori domande, <a href="https://www.rdtech.it/contatti/">contattaci!</a></p><p> </p>						</div>
				</div>
					</div>
		</div>
							</div>
		</section>
							</div>
		<p>L'articolo <a rel="nofollow" href="https://www.rdtech.it/come-installare-java/">Come installare Java per la programmazione</a> proviene da <a rel="nofollow" href="https://www.rdtech.it">RD Tech</a>.</p>
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