Share Give commands to an imaginary person sitting in an empty desk to model what happens when you give commands to an object that hasn’t been instantiated to help students understand null pointer exceptions. with FacebookShare Give commands to an imaginary person sitting in an empty desk to model what happens when you give commands to an object that hasn’t been instantiated to help students understand null pointer exceptions. with Twitter This activity helps students realize one of the common situations where a null pointer exception might incur. More about this tip Tags Development Methods Meaningful and Relevant Content External Source Interview with Ria Galanos Other Tips By Other Tips By Ria Galanos