Question

Task 1. Create class "Vehicle" with variables "company" and "year". LM 2. Create 3 derived classes: "Bus", "Car", and "Motorcycle". They should contain a variable storing number of seats (bus) / weight (car) / number of tires (motorcycle), constructor, destructor and a print_info function that will print all the information about the vehicle. PK 3. The constructors should take as parameters: company, year and number of seats / weight / number of tires. Inside it assign the company name and create an if / else condition that will throw an invalid_argument () exception with message "bus / car / motorcycle not produced yet" if the year is bigger than 2020, or assign the proper value. Additionally: a) for class "Bus": create if / else condition that throws an out of_range () exception with message "invalid number of seats" if that value is smaller than 8 and bigger than 70, or assign the proper value b) for class "Car": create if / else condition that throws an exception with message "car is too heavy" if that value is bigger than 3500, or assign the proper value c) for class "Motorcycle": create if / else condition that throws an exception with message "vehicle is not a motorcycle" if that value is different than 2, or assign the proper value

Answer 1

#include<iostream>

#include<string>

using namespace std;

class Vehicle

{

public:

int year;

string company;

Vechile(int year,string company)

{

if (year<=2020)

{

this.company=company;

this.year=year;}

else{

throw "bus / car / motorcycle not produced yet";}

}

}

class Bus:public Vehicle{

public:

void print_info(){

cout<<company;

cout<<year;

cout<<numberofseats;

}

int numberofseats;

Bus(int seats)

{

cin>>seats;

if(seats>=8 && seats<=70)

{this.numberofseats=seats;}

else

{

throw "invalid number of seats";

}

}

~Bus();

}

class Car:public Vehicle{

int weight;

public:

Car(int w){

if(w<=3500)

{

this.weight=w;

}

else{

throw "car is too heavy";

}

}

~Car();

void print_info(){

cout<<company;

cout<<year;

cout<<weight;

}

}

class Motorcycle:public Vehicle{

public:

int numberoftires;

Motorcycle(int t)

{

if(t==2)

{

this.numberoftires=t;

}

else

{

throw "vehicle is not a motorcycle";

}

}

~Motorcycle();

void print_info(){

cout<<company;

cout<<year;

cout<<numberoftires;

}

}