Dynamic Method Binding

• In the Shape class example, we had to have a draw method in the Shape class, even though we never used that method, only the subclasses' overridden draw methods.
• Java decides which method to use, in such cases, at execution time: dynamic method binding.
• The paint method (that iterates through the Shape array) makes use of dynamic method binding.
• Dynamic method binding is crucial to polymorphism.

  It increases execution time overhead, but simplifies programming.