HW4

At this class, I learned how to divide area in the same screen then change the same color to two different color . The most important thing which I think is the pointer. If we want many different outcome, we don't need to write long code at same time. We can use pointer to point which we want then if the condition is the same, we don't need to write the condition again, we can just omit redundant code then write main code on that. If we use pointer nimbly, it is easy to change outcome which we want.