Question

Write a function that takes number between 1 and 7 as a parameter and prints out the corresponding number as a string. For example, if the parameter is 1, your function should print out one. If the parameter is 2, your function should print out two, etc. If the parameter is not between 1 and 7, the function should print an appropriate error message. In your file, you should include a main() that allows the user to enter a number and calls your function to demonstrate that it works.

Answer 1

Answer:

The program in C++ is as follows:

#include<iostream>

using namespace std;

void changenum(int num){

   string nums[7] = {"One","Two","Three","Four","Five","Six","Seven"};

   if(num >7 || num < 1){

       cout<<"Out of range";

   }

   else{

       cout<<nums[num-1];    }

}

int main(){

   int num;

   cout<<"Number: ";

   cin>>num;

   changenum(num);

   return 0;

}

Explanation:

The function begins here

void changenum(int num){

This initializesa string of numbers; one to seven

   string nums[7] = {"One","Two","Three","Four","Five","Six","Seven"};

If the number is less than 1 or greater than 7, it prints an out of range error

   if(num >7 || num < 1){

       cout<<"Out of range";

   }

If otherwise, the corresponding number is printed

   else{

       cout<<nums[num-1];    }

}

The main begins here

int main(){

This declares num as integer

   int num;

Prompt the user for input

   cout<<"Number: ";

Get input from the user

   cin>>num;

Pass the input to the function

   changenum(num);

   return 0;

}