Those are purely reactionary definitions of fear and anger, though. Emotions come with a reward/punishment for decisions (guilt, sorrow, shame, embarrassment, etc.). Dopamine and other chemical releases are our reward and punishment whilst genetics & experience are our regulators of the amounts we get for every action. You could probably program a sort of self-calibrating regulator of reactions, which might give a sense of personality, but you can't reward or punish them in the manner you would biological beings.