Design a class named QuadraticEquation for a quadratic equation ax² + bx+c= 0. The class contains: ▪ Private data fields a, b, and c that represent three coefficients. ▪ A constructor with the arguments for a, b, and c. ▪ Three getter methods for a, b, and c. ▪ A method named getDiscriminant () that returns the discriminant, which is b² - 4ac. ▪ The methods named getRoot1 () and getRoot2() for returning two roots

EBK JAVA PROGRAMMING
9th Edition
ISBN:9781337671385
Author:FARRELL
Publisher:FARRELL
Chapter11: Advanced Inheritance Concepts
Section: Chapter Questions
Problem 3PE
icon
Related questions
Question
Design a class named
QuadraticEquation for a quadratic equation ax²+bx+c = 0. The class
contains:
■ Private data fields a, b, and c that represent three coefficients.
▪ A constructor with the arguments for a, b, and c.
▪ Three getter methods for a, b, and c.
▪ A method named getDiscriminant () that returns the discriminant, which
is b² - 4ac.
■ The methods named getRoot1 () and getRoot2 () for returning two roots
of the equation
r1=
-b+√√√b² - 4ac
2a
and r₂ =
-b-√√b² - 4ac
2a
These methods are useful only if the discriminant is nonnegative. Let these
methods return 0 if the discriminant is negative.
Draw the UML diagram for the class then implement the class. Write a test
program that prompts the user to enter values for a, b, and c and displays the
result based on the discriminant. If the discriminant is positive, display the two
roots. If the discriminant is 0, display the one root. Otherwise, display "The
equation has no roots."
Transcribed Image Text:Design a class named QuadraticEquation for a quadratic equation ax²+bx+c = 0. The class contains: ■ Private data fields a, b, and c that represent three coefficients. ▪ A constructor with the arguments for a, b, and c. ▪ Three getter methods for a, b, and c. ▪ A method named getDiscriminant () that returns the discriminant, which is b² - 4ac. ■ The methods named getRoot1 () and getRoot2 () for returning two roots of the equation r1= -b+√√√b² - 4ac 2a and r₂ = -b-√√b² - 4ac 2a These methods are useful only if the discriminant is nonnegative. Let these methods return 0 if the discriminant is negative. Draw the UML diagram for the class then implement the class. Write a test program that prompts the user to enter values for a, b, and c and displays the result based on the discriminant. If the discriminant is positive, display the two roots. If the discriminant is 0, display the one root. Otherwise, display "The equation has no roots."
Expert Solution
steps

Step by step

Solved in 4 steps with 4 images

Blurred answer
Knowledge Booster
Reference Types in Function
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
EBK JAVA PROGRAMMING
EBK JAVA PROGRAMMING
Computer Science
ISBN:
9781337671385
Author:
FARRELL
Publisher:
CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#
Microsoft Visual C#
Computer Science
ISBN:
9781337102100
Author:
Joyce, Farrell.
Publisher:
Cengage Learning,