Chapter 2, Problem 6R

Program Plan Intro

Inheritance diagram:

• The properties of one class can be used by another class using inheritance.
• A class, which inherits the properties from another class, is called subclass.
• A super class is the one in which the properties can be inherited by subclass.
• The inheritance diagram can be drawn from super class to sub class.
• In inheritance diagram, the super or parent class is appeared previous to the sub class and sub class is appeared next to the parent class.
• If the properties of the class do not contain access specifier, then “public” access specifier is used as the default access specifier.

Representation of inheritance diagram:

• The class in inheritance diagram can be represented using rectangle symbol.
• The rectangle box is splitted into three divisions.
• The first part represents the name of the class, the second part represents the field names and the third part represents the methods.
• The arrow mark represents the hierarchy from parent class to child class.
• The symbols used to represent the access specifiers are as follows.
  • Public (“+”)
  • Private (“-”)
  • Protected (“#”)