Assumptions

You have a class named DonutsBox.

The class has a member function named isEmpty.

The function returns true if no donuts remain in the box and false otherwise.

An object of the DonutsBox class named box has been created.

Code

while(!box.IsEmpty)

  //select and eat donuts 

Conclusion

Using this approach, the detailed inspection shown on the right can be avoided.

CLASSES SIMPLIFY LIFE'S ACTIVITIES!