Modify the Car class example and add the following: A default constructor that initializes strings to “N/A” and numbers to zero. An overloaded constructor that takes in initial values to set your fields (6 parameters). accel() method: a void method that takes a double variable as a parameter and increases the speed of the car by that amount. brake() method: a void method that sets the speed to zero. To test your class, you will need to instantiate at least two different Car objects in the main method in the CarDemo class. Each of your objects should use a different constructor. For the object that uses the default constructor, you will need to invoke the mutator methods to assign values to your fields. Invoke the displayFeatures() method for both objects and display the variables. Demonstrate the use of the accessor method getColor() by accessing the color of each car and printing it to the console. Use the method accel to increase the speed of the first car by 65 mph. Use the method brake to set the speed of the first car to 0. Add a third reference variable that refers to one of the existing objects. Invoke the getColor() method for both reference variables that refer to the same object. They should both have the same color. Use println to print the color for both variables.

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

Section: Chapter Questions

Problem 1PE

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Modify the Car class example and add the following:

A default constructor that initializes strings to “N/A” and numbers to zero.
An overloaded constructor that takes in initial values to set your fields (6
parameters).
accel() method: a void method that takes a double variable as a parameter and

increases the speed of the car by that amount.

brake() method: a void method that sets the speed to zero.
To test your class, you will need to instantiate at least two different Car objects in the main method in the CarDemo class.
Each of your objects should use a different constructor. For the object that uses

the default constructor, you will need to invoke the mutator methods to assign

values to your fields.

Invoke the displayFeatures() method for both objects and display the variables.
Demonstrate the use of the accessor method getColor() by accessing the color of each car and printing it to the console.
Use the method accel to increase the speed of the first car by 65 mph.
Use the method brake to set the speed of the first car to 0.
Add a third reference variable that refers to one of the existing objects.
Invoke the getColor() method for both reference variables that refer to the same

object. They should both have the same color. Use println to print the color for

both variables.

Options
********** Car 1 ******** ***
Make: Tesla
Model: Model X
Color: Red
Year: 2021
Price: $35999.0
Speed: 0.0 mph
*********** Car 2 ******
Make: Honda
Model: Civic
Color: Black
Year: 2018
Price: $17999.0
Speed: 0.0 mph
*********Invoking getColor() method**********
The color of the first car is Red and the color of the second color i
*********Invoking methods in Car Class***********
The first car is going with speed of 65.0 mph
After hitting the brake the speed of the first car is 0.0 mph.
*********Reference Variables*******
The color of the second car is Black
The color of the third car is Black

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