Create a class Car, which contains Three data members i.e. carName (of string type), ignition (of bool type), and currentSpeed (of integer type)
A no-argument constructor to initialize all data members with default values
A parameterized constructor to initialize all data members with user-defined values
Three setter functions to set values for all data members individually
Three getter function to get value of all data members individually
A member function setSpeed( ) // takes integer argument for setting speed
Derive a class named Convertible that contains
A data member top (of Boolean type)
A no-argument constructor to assign default value as “false” to top
A four argument constructor to assign values to all data-members i.e. carName, ignition, currentSpeed and top.
A setter to set the top data member up
A function named show() that displays all data member values of invoking object
Write a main() function that instantiates objects of Convertible class and test the functionality of all its member functions.
Answers
Answer:
Here.
Explanation:
#include <iostream>
#include <string>
using namespace std;
//Create a class Car, which contains • Three data members i.e. carName (of string type), ignition (of bool type), and //currentSpeed (of integer type)
class Car
{
public:
string carName;
bool ignition;
int currentSpeed;
//A no-argument constructor to initialize all data members with default values
//default value of string is "",bool is false,int is 0
Car()
{
carName="";
ignition=false;
currentSpeed=0;
}
//A parameterized constructor to initialize all data members with user-defined values
Car(string name,bool i,int speed)
{
carName=name;
ignition=i;
currentSpeed=speed;
}
//Three setter functions to set values for all data members individually
// Three getter function to get value of all data members individually
void setCarName(string s)
{
carName=s;
}
void setIgnition(bool ig)
{
ignition=ig;
}
void setCurrentSpeed(int speed)
{
currentSpeed=speed;
}
string getCarName()
{
return carName;
}
bool getIgnition()
{
return ignition;
}
int getCurrentSpeed()
{
return currentSpeed;
}
//A member function setSpeed( ) // takes integer argument for setting speed
void setSpeed(int sp1)
{
currentSpeed=sp1;
}
};
//Derive a class named Convertible
class Convertible:public Car
{
//A data member top (of Boolean type)
public:
bool top;
public:
//A no-argument constructor to assign default value as “false” to top
Convertible()
{
top=false;
}
//A four argument constructor to assign values to all data-members i.e. carName, ignition,
//currentSpeed and top.
Convertible(string n,bool i,int s,bool t):Car(n,i,s)
{
carName=n;
ignition=i;
currentSpeed=s;
top=t;
}
// A setter to set the top data member up
void setTop(bool t)
{
top=t;
}
//A function named show() that displays all data member values of invoking object
void show()
{
cout<<"Car name is:"<<carName<<endl;
cout<<"Ignition is: "<<ignition<<endl;
cout<<"Current Speed is :"<<currentSpeed<<endl;
cout<<"Top is:"<<top<<endl;
}
};
//main function
int main()
{
//creating object for Convertible class
Convertible c1("Audi",true,100,true);
c1.show();
c1.setCarName("Benz");
c1.setIgnition(true);
c1.setCurrentSpeed(80);
c1.setTop(true);
c1.show();
cout<<"Car Name is: "<<c1.getCarName()<<endl;
cout<<"Ignition is:"<<c1.getIgnition()<<endl;
cout<<"Current Speed is:"<<c1.getCurrentSpeed()<<endl;
return 0;
}
The following are the program to the given question:
Program Explanation:
Defining the header file.Defining a class "Car", inside the three variables "carName, ignition, and currentSpeed" is declared that are "string, bool, and integer" types.Inside the class, "default and parameterized constructor" and get and set method has defined that set and returns the parameter values.Outside the class, another class "Convertible" (child) is declared that inherit the base class "Car".Inside the child class, "default and parameterized constructor" is defined, which inherits the base class constructor.In the child class parameterized constructor it takes four parameters, in which 3 are inherited from the base class and one is bool type that is "t".In this class, a method "setTop" is defined that sets the "t" variable value and defines a show method that prints the variable values.Outside the class, the Main method is defined that creating the child class object and calling the parameterized constructor and other methods to print its values.Program:
#include <iostream>//header file
#include <string>
using namespace std;
class Car//defining a class Car
{
//defining a data members
public:
string carName;//defining string variable
bool ignition;//defining bool variable
int currentSpeed;//defining integer variable
Car()//defining default constructor
{
carName="";//initiliaze a space value in string variable
ignition=false;//initiliaze a bool value in bool variable
currentSpeed=0;//initiliaze an integer value into int variable
}
Car(string name,bool i,int speed)//defining parameterized constructor that holds value into the variable
{
carName=name;//holding value in carName variable
ignition=i;//holding value in ignition variable
currentSpeed=speed;//holding value in currentSpeed variable
}
void setCarName(string s)//defining a set method that takes parameter to set value into the variable
{
carName=s;//set value
}
void setIgnition(bool ig)//defining a set method that takes a parameter to set value into the variable
{
ignition=ig;//set value
}
void setCurrentSpeed(int speed)//defining a set method that takes a parameter to set value into the variable
{
currentSpeed=speed;//set value
}
string getCarName()//defining a get method that return input value
{
return carName;//return value
}
bool getIgnition()//defining a get method that return input value
{
return ignition;//return value
}
int getCurrentSpeed()//defining a get method that return input value
{
return currentSpeed;//return value
}
void setSpeed(int sp1)//defining a method setSpeed that holds parameter value
{
currentSpeed=sp1;//hold value in currentSpeed
}
};
class Convertible:public Car//defining a class currentSpeed that inherits Car class
{
public:
bool top;//defining bool variable
public:
Convertible()//defining default constructor
{
top=false;//holing bool value
}
Convertible(string n,bool i,int s,bool t):Car(n,i,s)//defining parameterized constructor Convertible that inherits base class parameterized constructor
{
carName=n;//holding value in string variable
ignition=i;//holding value in bool variable
currentSpeed=s;//holding value in integer variable
top=t;//holding value in bool variable
}
void setTop(bool t)//defining a method setTop that takes parameter to set bool value
{
top=t;//holding bool value
}
void show()//defining show method that prints variable value
{
cout<<"Car name is:"<<carName<<"\n";//prints value
cout<<"Ignition is: "<<ignition<<"\n";//prints value
cout<<"Current Speed is :"<<currentSpeed<<"\n";//prints value
cout<<"Top is:"<<top<<"\n";//prints value
}
};
int main()//defining a main method
{
Convertible cs("BMW",true,180,true);//creating the Convertible calss object that calls the parameterized constructor by accepting value into the parameter
cs.show();//calling method show
cs.setCarName("Benz");//calling the setCarName method
cs.setIgnition(true);//calling the setIgnition method
cs.setCurrentSpeed(160);//calling setCurrentSpeed method
cs.setTop(true);//calling setTop method
cs.show();//calling show method
cout<<"Car Name is: "<<cs.getCarName()<<"\n";//calling the getCarName method and print its value
cout<<"Ignition is:"<<cs.getIgnition()<<"\n";//calling the getIgnition method and print its value
cout<<"Current Speed is:"<<cs.getCurrentSpeed();//calling the getCurrentSpeed method and print its value
return 0;
}
Output:
Please find the attached file.
Learn more:
brainly.com/question/23313563
Related Questions
Which of these elements help të orient a user?
to
A
a dialog
B.
page name
c. an icon
b. a banner
Fast please
Answers
answer:
page name
Explanation:
Answer:
b. page name
Explanation:
plato
Create a new Java project/class called ChangeUp. Create an empty int array of size 6. Create a method called populateArray that will pass an array, use random class to choose a random index and prompt the user to enter a value, store the value in the array. Note: Generate 6 random index numbers in an attempt to fill the array. Create a method called printArray that prints the contents of the array using the for each enhanced loop. Submit code. Note: It is possible that your array won't be filled and some values will still have 0 stored. That is acceptable.
Answers
//import the Random and Scanner classes
import java.util.Random;
import java.util.Scanner;
//Begin class definition
public class ChangeUp {
//Begin the main method
public static void main(String args[]) {
//Initialize the empty array of 6 elements
int [] numbers = new int [6];
//Call to the populateArray method
populateArray(numbers);
} //End of main method
//Method to populate the array and print out the populated array
//Parameter arr is the array to be populated
public static void populateArray(int [] arr){
//Create object of the Random class to generate the random index
Random rand = new Random();
//Create object of the Scanner class to read user's inputs
Scanner input = new Scanner(System.in);
//Initialize a counter variable to control the while loop
int i = 0;
//Begin the while loop. This loop runs as many times as the number of elements in the array - 6 in this case.
while(i < arr.length){
//generate random number using the Random object (rand) created above, and store in an int variable (randomNumber)
int randomNumber = rand.nextInt(6);
//(Optional) Print out a line for formatting purposes
System.out.println();
//prompt user to enter a value
System.out.println("Enter a value " + (i + 1));
//Receive the user input using the Scanner object(input) created earlier.
//Store input in an int variable (inputNumber)
int inputNumber = input.nextInt();
//Store the value entered by the user in the array at the index specified by the random number
arr[randomNumber] = inputNumber;
//increment the counter by 1
i++;
}
//(Optional) Print out a line for formatting purposes
System.out.println();
//(Optional) Print out a description text
System.out.println("The populated array is : ");
//Print out the array content using enhanced for loop
//separating each element by a space
for(int x: arr){
System.out.print(x + " ");
}
} //End of populateArray method
} //End of class definition
Explanation:
The code above is written in Java. It contains comments explaining the lines of the code.
This source code together with a sample output has been attached to this response.
Answer:
import java.util.Random;
import java.util.Scanner;
public class ArrayExample {
public static void main(String[] args) {
int[] array = new int[6];
populateArray(array);
printArray(array);
}
public static void populateArray(int[] array) {
Random random = new Random();
Scanner scanner = new Scanner(System.in);
boolean[] filledIndexes = new boolean[6];
for (int i = 0; i < 6; i++) {
int index = random.nextInt(6);
while (filledIndexes[index]) {
index = random.nextInt(6);
}
filledIndexes[index] = true;
System.out.print("Enter a value for index " + index + ": ");
int value = scanner.nextInt();
array[index] = value;
}
}
public static void printArray(int[] array) {
System.out.println("Array contents:");
for (int value : array) {
System.out.print(value + " ");
}
}
}
Explanation:
In the code provided, we are creating an array of size 6 to store integer values. The objective is to populate this array by taking input from the user for specific indexes chosen randomly.
To achieve this, we have defined two methods: populateArray and printArray.
The populateArray method takes an array as a parameter and fills it with values provided by the user. Here's how it works:
We create an instance of the Random class to generate random numbers and a Scanner object to read user input.We also create a boolean array called filledIndexes of the same size as the main array. This array will keep track of the indexes that have already been filled.Next, we use a loop to iterate six times (since we want to fill six elements in the array).Inside the loop, we generate a random index using random.nextInt(6). However, we want to make sure that we don't fill the same index twice. So, we check if the index is already filled by checking the corresponding value in the filledIndexes array.If the index is already filled (i.e., filledIndexes[index] is true), we generate a new random index until we find an unfilled one.Once we have a valid, unfilled index, we mark it as filled by setting filledIndexes[index] to true.We then prompt the user to enter a value for the chosen index and read the input using scanner.nextInt(). We store this value in the main array at the corresponding index.This process is repeated six times, ensuring that each index is filled with a unique value.The printArray method is responsible for printing the contents of the array. It uses a for-each enhanced loop to iterate over each element in the array and prints its value.
**By separating the population and printing logic into separate methods, the code becomes more modular and easier to understand.**