Java programming with Greenfoot: object interaction (a second look)

This video tutorial explores an essential element of object oriented programming – getting objects to interact.  This is modelled by integrating a counter object into a scenario – in this case, a simple paddle and ball breakout game.  The tutorial uses a previously created score counter and shows a method to connect it to the paddle and ball objects by creating a reference between them.

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This resource is part of Joy of code: Java programming with Greenfoot