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3 years ago

2. Write these functions definitions:

Computers and Technology

1 answer:

GREYUIT [131]3 years ago

7 0

Answer:

Complete the code with the following code segment:

void add2Numbers(){

int num1, num2;

cout<<"Enter any two numbers: ";

cin>>num1>>num2;

cout<<num1+num2;

}

void sub2Numbers(){

int num1, num2;

cout<<"Enter any two numbers: ";

cin>>num1>>num2;

cout<<num1-num2;

}

void mul2Numbers(){

int num1, num2;

cout<<"Enter any two numbers: ";

cin>>num1>>num2;

cout<<num1*num2;

}

void div2Numbers(){

int num1, num2;

cout<<"Enter any two numbers: ";

cin>>num1>>num2;

if(num2==0){

cout<<"Division by 0 is invalid";

}else{

cout<<(float)num1/num2;}

}

Explanation:

The function added to this solution are:

add2Numbers
sub2Numbers
mul2Numbers
div2Numbers

Each of the functions

declares two integers num1 and num2
prompt user for inputs
gets user inputs from the user

For add2Numbers() function:

This line adds the two integer numbers and prints the result

cout<<num1+num2;

For sub2Numbers() function:

This line subtracts the two integer numbers and prints the result

cout<<num1-num2;

For mul2Numbers() function:

This line multiplies the two integer numbers and prints the result

cout<<num1*num2;

For div2Numbers() function:

This if condtion checks if the denominator is 0

if(num2==0){

If yes, the following is printed

cout<<"Division by 0 is invalid";

If otherwise, the division is calculated and the result is printed

cout<<(float)num1/num2;

<em>See attachment for complete program</em>

Download cpp

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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;

}

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