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ch24a.html
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<!doctype html>
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<meta name="description" content="Study guide for the Oracle Certified Professional, Java SE 8 Programmer Exam ">
<title>Java 8 Programmer II Study Guide: Exam 1Z0-809</title>
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<h1><i class="chapter">Chapter TWENTY-FOUR</i><br />
NIO.2</h1>
<p><br /></p>
<h3 style="text-align: center;"><i>Exam Objectives</i></h3>
<p style="text-align: center;"><i>Use Path interface to operate on file and directory paths.<br /></i><i>Use Files class to check, read, delete, copy, move, manage metadata of a file or directory.</i></p>
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<h2>Answers</h2>
<p><b>1. The correct answer is C.</b><br />
<code>Path.resolve()</code> doesn't remove redundancy in paths (that's done with <code>Path.normalize()</code> or <code>Path.toRealPath()</code>), it just combines two paths.</p>
<p><br /></p>
<p><b>2. The correct answer is B.</b><br />
<code>path.getRoot()</code> returns <code>c:\</code><br />
<code>path.getName(0)</code> returns <code>Users</code><br />
<code>path.getName(1)</code> returns <code>mark</code><br />
<code>path.subpath(0,0)</code> throws an exception</p>
<p><code>getName()</code> returns the element parts of a path. The first element is at index zero (the root doesn't count as an element).</p>
<p><br /></p>
<p><b>3. The correct answer is C.</b><br />
<code>CopyOption</code> is an interface implemented by the enumerations <code>StandardCopyOptions</code> (with the values <code>ATOMIC_MOVE</code> (not supported), <code>REPLACE_EXISTING</code>, <code>COPY_ATTRIBUTES</code>) and <code>LinkOption</code> (with the value <code>NOFOLLOW_LINKS</code>).
<p><br /></p>
<p><b>4. The correct answer is D.</b><br />
<code>.</code> means the current directory and <code>..</code> means the parent directory. The method <code>toRealPath()</code> turns the redundant path into <code>C:\temp\file.txt. path.subpath(1,2)</code> give us the element at index <code>1</code>, <code>file.txt</code>.</p>
<p><br /></p>
<p><b>5. The correct answer is D.</b><br /> A file creation time attribute can only be set with <code>BasicFileAttributeView</code>. The right way to do it is with a <code>FileTime</code> instance as shown in Option D.</p>
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