Data (attributes) - all have private access

• double quadraticCoefficient (this is the coefficient of the quadratic term of the polynomial)
• double linearCoefficient (this is the coefficient of the linear term of the polynomial)
• double constant (this is the constant of the polynomial)

Methods (behaviors) - all have public access

constructor:

• Arguments:
  • None
• Return
  • None
• Behavior
  • Calls Polynomial's constructPolynomial instance method

constructPolynomial:

• Arguments:
  • None
• Return
  • None
• Behavior
  • Allows user to enter the necessary coefficients and the constant term for the polynomial, and sets the attributes accordingly

functionValue:

• Arguments:
  • double arg
• Return
  • double
• Behavior
  • Calculates and returns the function value using the argument arg (for example, if the user entered the polynomial 3x² + 2x + 7, then functionValue(3) would return 40)

displaySelf:

• Arguments:
  • None
• Return
  • None
• Behavior
  • Neatly displays the polynomial entered by the user

class Assignment3

Methods

public static void main(String[] args):

• Arguments:
• String[] args
• Return:
• None
• Behavior:
• The polynomial is constructed
• The user is asked for the argument to the function
• The polynomial is displayed
• The function value (based on the argument and Polynomial entered) is displayed