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Examples/Java/Processing/processing-3.3.6/modes/java/reference/nf_.html
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<p class="ref-notice">This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, <a href="https://github.com/processing/processing-docs/issues?state=open">please let us know</a>. If you prefer a more technical reference, visit the <a href="http://processing.github.io/processing-javadocs/core/">Processing Core Javadoc</a> and <a href="http://processing.github.io/processing-javadocs/libraries/">Libraries Javadoc</a>.</p>
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<tr class="name-row">
<th scope="row">Name</th>
<td><h3>nf()</h3></td>
</tr>
<tr class="">
<tr class=""><th scope="row">Examples</th><td><div class="example"><pre >
int a=200, b=40, c=90;
String sa = nf(a, 10);
println(sa); // Prints "0000000200"
String sb = nf(b, 5);
println(sb); // Prints "00040"
String sc = nf(c, 3);
println(sc); // Prints "090"
float d = 200.94, e = 40.2, f = 9.012;
String sd = nf(d, 10, 4);
println(sd); // Prints "0000000200.9400"
String se = nf(e, 5, 3);
println(se); // Prints "00040.200"
String sf = nf(f, 3, 5);
println(sf); // Prints "009.01200"
</pre></div>
</td></tr>
<tr class="">
<th scope="row">Description</th>
<td>
Utility function for formatting numbers into strings. There are two versions: one for formatting floats, and one for formatting ints. The values for the <b>digits</b>, <b>left</b>, and <b>right</b> parameters should always be positive integers.<br /><br />As shown in the above example, <b>nf()</b> is used to add zeros to the left and/or right of a number. This is typically for aligning a list of numbers. To <em>remove</em> digits from a floating-point number, use the <b>int()</b>, <b>ceil()</b>, <b>floor()</b>, or <b>round()</b> functions.
</td>
</tr>
<tr class=""><th scope="row">Syntax</th><td><pre>nf(<kbd>num</kbd>)
nf(<kbd>nums</kbd>)
nf(<kbd>nums</kbd>, <kbd>digits</kbd>)
nf(<kbd>num</kbd>, <kbd>digits</kbd>)
nf(<kbd>nums</kbd>, <kbd>left</kbd>, <kbd>right</kbd>)
nf(<kbd>num</kbd>, <kbd>left</kbd>, <kbd>right</kbd>)</pre></td></tr>
<tr class=""> <th scope="row">Parameters</th><td><table cellpadding="0" cellspacing="0" border="0"><tr class="">
<th scope="row" class="code">nums</th>
<td>float[], or int[]: the numbers to format</td>
</tr>
<tr class="">
<th scope="row" class="code">digits</th>
<td>int: number of digits to pad with zero</td>
</tr>
<tr class="">
<th scope="row" class="code">num</th>
<td>float, or int: the number to format</td>
</tr>
<tr class="">
<th scope="row" class="code">left</th>
<td>int: number of digits to the left of the decimal point</td>
</tr>
<tr class="">
<th scope="row" class="code">right</th>
<td>int: number of digits to the right of the decimal point</td>
</tr></table></td> </tr>
<tr class=""><th scope="row">Returns</th><td class="code">String[]</td></tr>
<tr class=""><th scope="row">Related</th><td><a class="code" href="nfs_.html">nfs()</a><br />
<a class="code" href="nfp_.html">nfp()</a><br />
<a class="code" href="nfc_.html">nfc()</a><br /></td></tr>
</table>
Updated on April 30, 2017 02:33:17pm EDT<br /><br />
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