INHERITANCE AND POLYMORPHISM - Java Programming: From Problem Analysis to Program Design - page 692

The main characteristics of a course are the course name, course number, and
number of credit hours.
Some of the basic operations that need to be performed on an object of the course type are:
1. Set the course information.
2. Print the course information.
3. Show the credit hours.
4. Show the course number.
Next, we define the members of the class Course .
Instance Variables:

private String courseName; //object to store the course name
private String courseNo; //object to store the course number
private int courseCredits; //variable to store the course
//credits
Constructors and Instance Methods:

public void setCourseInfo(String cName, String cNo,
int credits)
//Method to set the course information
//The course information is set according to the
//incoming parameters.
//Postcondition: courseName = cName; courseNo = cNo;
// courseCredits = credits;

public void setCourseName(String cName)
//Method to set the course Name
//Postcondition: courseName = cName;

public void setCourseNumber(String cNo)
//Method to set the course Number
//Postcondition: courseNo = cNo;

public void setCourseCredits( int credits)
//Method to set the course credits
//Postcondition: courseCredits = credits;

public String toString()
//Method to return the course information as a string
//Postcondition: The course information is returned
// as a string.

public String getCourseName()
//Method to return the course name
//Postcondition: The value of courseName is returned.

public String getCourseNumber()
//Method to return the course number
//Postcondition: The value of courseNo is returned.