float[] tmp = {0};

void setup() {
size(200,200);
}

void draw() {
tmp = {0};
}

-----------------------------
processing.app.debug.RunnerException: It looks like you're mixing "active"
and "static" modes.
at processing.app.Sketch.preprocess(Sketch.java:1326)
at processing.app.Sketch.preprocess(Sketch.java:1205)
at processing.app.Sketch.build(Sketch.java:1568)
at processing.app.Sketch.build(Sketch.java:1553)
at processing.app.Editor$DefaultRunHandler.run(Editor.java:1648)
at java.lang.Thread.run(Thread.java:613)

your program has an error, this isn't valid syntax:

tmp = {0};

but the error reported by processing is incorrect, which is bug #1539.

*** This bug has been marked as a duplicate of 1539 ***