This reference is for Processing 2.0+. If you have a previous version, use the reference included with your software. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Javadoc.
| Name | return |
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|---|---|---|---|---|---|---|---|---|---|
| Examples |
int val = 30;
void draw() {
int t = timestwo(val);
println(t);
}
// The first 'int' in the function declaration
// specifies the type of data to be returned.
int timestwo(int dVal) {
dVal = dVal * 2;
return dVal; // Returns an int of 60, in this case
}
int[] vals = {10, 20, 30};
void draw() {
int[] t = timestwo(vals);
println(t);
noLoop();
}
int[] timestwo(int[] dVals) {
for (int i = 0; i < dVals.length; i++) {
dVals[i] = dVals[i] * 2;
}
return dVals; // Returns an array of 3 ints: 20, 40, 60
}
void draw() {
background(204);
line(0, 0, width, height);
if (mousePressed) {
return; // Break out of draw(), skipping the line statement below
}
line(0, height, width, 0); // Executed only if mouse is not pressed
}
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| 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 void can't return values and shouldn't include a return value. The keyword return may also be used to break out of a function, thus not allowing the program to the remaining statements. (See the third example above.) |
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| Syntax |
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| Parameters |
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