processing-docs/content/api_en/include/null.xml at macos · StudioProcess/processing-docs

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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<name>null</name>
<category>Structure</category>
<subcategory></subcategory>
<usage>Web &amp; Application</usage>
<image></image>
<code><![CDATA[
String content = "It is a beautiful day.";
String[] results;  // Declare empty String array
results = match(content, "orange");
// The match statement above will fail to find
// the word "orange" in the String 'content', so
// it will return a null value to 'results'.
if (results == null) {
  println("Value of 'results' is null.");  // This line is printed
  println("Value of 'results' is not null!");  // This line is not printed
<description><![CDATA[
Special value used to signify the target is not a valid data element. In Processing, you may run across the keyword <b>null</b> when trying to access data which is not there.
]]></description>
<syntax></syntax>
<returns></returns>
<related></related>
<availability>1.0</availability>
<type>keyword</type>
<partof>PDE</partof>
<level>extended</level>

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