INHERITANCE AND POLYMORPHISM - Java Programming: From Problem Analysis to Program Design - page 694

The method setCourseInfo sets the values of the instance variables according to
the values of the parameters. Its definition is:

public void setCourseInfo(String cName, String cNo,
int credits)

{

courseName = cName;
courseNo = cNo;
courseCredits = credits;

}
The definitions of the methods setCourseName , setCourseNumber ,and
setCourseCredits are similar to the method setCourseInfo . Their definitions are:

public void setCourseName(String cName)
{

courseName = cName;

}

public void setCourseNumber(String cNo)
{

courseNo = cNo;

}

public void setCourseCredits( int credits)
{

courseCredits = credits;

}
The method toString returns the course information as a string. Its definition is:
public String toString()
{

return String.format("%-12s%-15s%4s", courseNo,
courseName, courseCredits);

} //end toString

The definitions of the remaining methods and constructors are as follows:

public Course(String cName, String cNo, int credits)
{

courseName = cName;
courseNo = cNo;
courseCredits = credits;

}

public Course()
{

courseName = "";
courseNo = "";
courseCredits = 0;

}