Chapter 11, Problem 2AW

Explanation of Solution

Statement:

//Create an object for Tree class

Plant p = new Tree();

Explanation:

The above statement indicates to declare the variable “p” for the “Plant” type.

• That is, it creates an object for “Tree” class and assigns reference to “Tree” object to “p” variable. The object of “Tree” also references the “Plant” variable.
• Hence, this “Plant p = new Tree();” statement is legal. Because “Tree” object is also an “Plant” object...