Write a function named getNumber that uses a reference parameter variable to accept an integer argument. The function should prompt the user to enter a number in the range of 1 through 100. The input should be validated and stored in the parameter variable

Question

Computers and Technology

Aileen Torres

8 July, 09:54

Write a function named getNumber that uses a reference parameter variable to accept an integer argument. The function should prompt the user to enter a number in the range of 1 through 100. The input should be validated and stored in the parameter variable

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Answers (1)

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Ernest Gordon · Answer 1

Following are the function

void getNumber (int &x) / / function definition

{

int n; / / variable declaration

cout<<" Enter number in the range of 1 through 100:";

cin>>n;

while (n100) / / iterating over the loop

{

cout<<"wrong input:"<
cout<<" Enter number again in the range of 1 through 100:";

cin>>n;

}

x=n; / / stored in the parameter variable

}

Explanation:

Following are the code in c++

#include / / header file

using namespace std;

void getNumber (int &x) / / function definition

{

int n; / / variable declaration

cout<<" Enter number in the range of 1 through 100:";

cin>>n;

while (n100) / / iterating over the loop

{

cout<<"wrong input:"<
cout<<" Enter number again in the range of 1 through 100:";

cin>>n;

}

x=n; / / stored in the parameter variable

}

int main () / / main function

{

int x;

getNumber (x); / / calling

cout<
return 0;

}

In this program we create a function getNumber as reference parameter of void type. Taking input by user in "n" variable and validate that the number in the range of 1 through 100 by using while loop if it is out of range then we again taking input by the user untill we will not provide the correct range.

Output:

Enter number in the range of 1 through 100:345

"wrong input:

Enter number again in the range of 1 through 100:45

45