processing4/web/reference/API/return.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<root>
<name>return</name>

<category>Structure</category>

<subcategory></subcategory>

<usage>Web &amp; Application</usage>

<example>
<image></image>
<code>
int val = 30;
 
void draw() {
  int t = timestwo(val);
  println(t);
}

int timestwo(int doubledVal) {
  doubledVal = doubledVal * 2;
  return doubledVal;
}
</code>
</example>

<example>
<image></image>
<code>
int[] vals = {10, 20, 30};
  
void draw() {
  int[] t = timestwo(vals);
  println(t);
}

int[] timestwo(int[] doubledVals) {
  for(int i=0; i&lt;b.length; i++) {
    b[i] = b[i] * 2;
  }
  return doubledVals;
}
</code>
</example>

<description>
Keyword used to indicate the value to return from a function. The value being returned must be the same datatype as defined in the function declaration. Functions declared with <b>void</b> can't return values and shouldn't include a return value. Functions can't include more than one <b>return</b> and the statement including <b>return</b> must be the last line in the function.
</description>

<syntax>
<c>type</c> <c>function</c> {
  <c>statements</c>
  return <c>value</c>
}
</syntax>

<parameter>
<label>type</label>
<description>boolean, byte, char, int, float, String, boolean[], byte[], char[], int[], float[], String[]</description>
</parameter>

<parameter>
<label>function</label>
<description>any function that is being defined</description>
</parameter>

<parameter>
<label>statements</label>
<description>any valid statements</description>
</parameter>

<parameter>
<label>value</label>
<description>must be the same datatype as the type parameter</description>
</parameter>

<returns></returns>

<related>
</related>

<availability>1.0</availability>

<type>Keyword</type>

<partof>PDE</partof>


</root>