Did you call <PApplet>.registerKeyPressed(this); in the initialization?

In Eclipse you need the access specifier 'public' in Processing you don't.

In Eclipse you should see a green triangle to the left of the first line e.g.



If you don't then the class does not inherit from PApplet so it won't work.

Have you tried to insert a println to see it the method is actually being called.

1. public void keyPressed() {
2.   println("keyPressed() called at " + System.currentTimeMillis());
3.   // Your stuff next
4. }

Alternatively, use the @Override annotation before all Processing methods you overload. Thus, if you don't (eg. accidentally using the wrong signature, or putting it at the wrong place), you will get an error.

Alternatively, use the @Override annotation before all Processing methods you overload. Thus, if you don't (eg. accidentally using the wrong signature, or putting it at the wrong place), you will get an error.

 

??

@Override can only be used in a Java editor such as Eclipse.
It indicates that a method declaration is intended to override a method declaration in a superclass.
See the Override Reference.

It is used by putting @Override immediately before the method that is doing the overriding.