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

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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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."
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