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	<title>Silveira Neto &#187; Douglas Adams</title>
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		<title>Java: Accessing Private Members</title>
		<link>http://silveiraneto.net/2009/11/14/java-accessing-private-members/</link>
		<comments>http://silveiraneto.net/2009/11/14/java-accessing-private-members/#comments</comments>
		<pubDate>Sat, 14 Nov 2009 07:27:14 +0000</pubDate>
		<dc:creator>Silveira</dc:creator>
				<category><![CDATA[english]]></category>
		<category><![CDATA[Class]]></category>
		<category><![CDATA[Douglas Adams]]></category>
		<category><![CDATA[Field]]></category>
		<category><![CDATA[getclass]]></category>
		<category><![CDATA[getDeclaredField]]></category>
		<category><![CDATA[Hack]]></category>
		<category><![CDATA[Hacking]]></category>
		<category><![CDATA[Java]]></category>
		<category><![CDATA[Life]]></category>
		<category><![CDATA[Object]]></category>
		<category><![CDATA[Object-Oriented Programming]]></category>
		<category><![CDATA[OOP]]></category>
		<category><![CDATA[Reflection]]></category>

		<guid isPermaLink="false">http://silveiraneto.net/?p=2942</guid>
		<description><![CDATA[<a href="http://silveiraneto.net/2009/11/14/java-accessing-private-members/" title="Java: Accessing Private Members"></a>Using reflection to change the accessibility of a private object field and access it at runtime. import java.lang.reflect.Field; &#160; class Life &#123; private int meaning = 42; &#125; &#160; class Hack &#123; public static void main&#40;String args&#91;&#93;&#41;&#123; Life life = &#8230;<p class="read-more"><a href="http://silveiraneto.net/2009/11/14/java-accessing-private-members/">Read more &#187;</a></p>]]></description>
			<content:encoded><![CDATA[<a href="http://silveiraneto.net/2009/11/14/java-accessing-private-members/" title="Java: Accessing Private Members"></a><p>Using reflection to change the accessibility of a private object field and access it at runtime.</p>

<div class="wp_syntax"><div class="code"><pre class="java" style="font-family:monospace;"><span style="color: #000000; font-weight: bold;">import</span> <span style="color: #006699;">java.lang.reflect.Field</span><span style="color: #339933;">;</span>
&nbsp;
<span style="color: #000000; font-weight: bold;">class</span> Life <span style="color: #009900;">&#123;</span>
    <span style="color: #000000; font-weight: bold;">private</span> <span style="color: #000066; font-weight: bold;">int</span> meaning <span style="color: #339933;">=</span> <span style="color: #cc66cc;">42</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span>
&nbsp;
<span style="color: #000000; font-weight: bold;">class</span> Hack <span style="color: #009900;">&#123;</span>
    <span style="color: #000000; font-weight: bold;">public</span> <span style="color: #000000; font-weight: bold;">static</span> <span style="color: #000066; font-weight: bold;">void</span> main<span style="color: #009900;">&#40;</span><span style="color: #003399;">String</span> args<span style="color: #009900;">&#91;</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
        Life life <span style="color: #339933;">=</span> <span style="color: #000000; font-weight: bold;">new</span> Life<span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
        <span style="color: #000000; font-weight: bold;">try</span> <span style="color: #009900;">&#123;</span>
            <span style="color: #003399;">Field</span> field <span style="color: #339933;">=</span> life.<span style="color: #006633;">getClass</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span>.<span style="color: #006633;">getDeclaredField</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">&quot;meaning&quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
            field.<span style="color: #006633;">setAccessible</span><span style="color: #009900;">&#40;</span><span style="color: #000066; font-weight: bold;">true</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
            <span style="color: #003399;">System</span>.<span style="color: #006633;">out</span>.<span style="color: #006633;">println</span><span style="color: #009900;">&#40;</span>field.<span style="color: #006633;">get</span><span style="color: #009900;">&#40;</span>life<span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
        <span style="color: #009900;">&#125;</span> <span style="color: #000000; font-weight: bold;">catch</span> <span style="color: #009900;">&#40;</span><span style="color: #003399;">NoSuchFieldException</span> e<span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#123;</span>
            e.<span style="color: #006633;">printStackTrace</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
        <span style="color: #009900;">&#125;</span> <span style="color: #000000; font-weight: bold;">catch</span> <span style="color: #009900;">&#40;</span><span style="color: #003399;">IllegalAccessException</span> e<span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
            e.<span style="color: #006633;">printStackTrace</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
        <span style="color: #009900;">&#125;</span>
    <span style="color: #009900;">&#125;</span>
<span style="color: #009900;">&#125;</span></pre></div></div>

<p>Output:</p>
<blockquote><p>42</p></blockquote>
]]></content:encoded>
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		</item>
		<item>
		<title>A trilogia de cinco livros</title>
		<link>http://silveiraneto.net/2008/01/05/a-trilogia-de-cinco-livros/</link>
		<comments>http://silveiraneto.net/2008/01/05/a-trilogia-de-cinco-livros/#comments</comments>
		<pubDate>Sat, 05 Jan 2008 22:15:13 +0000</pubDate>
		<dc:creator>Silveira</dc:creator>
				<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[]]></category>
		<category><![CDATA[Douglas Adams]]></category>
		<category><![CDATA[literatura]]></category>
		<category><![CDATA[Livros]]></category>
		<category><![CDATA[O Guia Do Mochileiro das Galáxias]]></category>

		<guid isPermaLink="false">http://silveiraneto.net/2008/01/05/a-trilogia-de-cinco-livros/</guid>
		<description><![CDATA[<a href="http://silveiraneto.net/2008/01/05/a-trilogia-de-cinco-livros/" title="A trilogia de cinco livros"></a>Terminei de ler os cinco livros da &#8220;trilogia&#8221; do Guia Do Mochileiro das Galáxias do Douglas Adams. É uma série que eu já queria ler a um bom tempo e que eu não me arrependi. Excelente para quem gosta de &#8230;<p class="read-more"><a href="http://silveiraneto.net/2008/01/05/a-trilogia-de-cinco-livros/">Read more &#187;</a></p>]]></description>
			<content:encoded><![CDATA[<a href="http://silveiraneto.net/2008/01/05/a-trilogia-de-cinco-livros/" title="A trilogia de cinco livros"></a><p style="text-align: center"><img src="http://silveiraneto.net/wp-content/uploads/2008/01/colecao_guia_dos_mochileiros_das_galaxias.jpg" alt="Os cinco livros da trilogia dos mochileiros das galáxias de Dougla Adams" /></p>
<p>Terminei de ler os cinco livros da &#8220;trilogia&#8221; do <em>Guia Do Mochileiro das Galáxias</em> do <em>Douglas Adams</em>. É uma série que eu já queria ler a um bom tempo e que eu não me arrependi.</p>
<p>Excelente para quem gosta de ficção científica, crítica a sociedade e muito humor.</p>
<p>Recomendo fortemente, principalmente porque são livros que foram lançados no Brasil a preços bem acessíveis.</p>
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