For frosting: Mix pineapple with pudding. Let sit in refrigerator for 1 hour while making cake. When done, add whipped cream and then frost cooled cake.
For cake: Mix all ingredients together for cake, and beat 2 minutes with electric mixer. Grease 12x9 inch cake pan. Pour in batter, and bake for approximately 30 minutes at 350 degrees f or until done.