Question

1. Viewing the code snippet below answer the following questions:

int num=10;

do

{

     cout << “Hello” << endl;

     num--;

} while(num > 1);

After the above code is executed:

1. “Hello” printed how many times: ___________
2. What is value ofnum:  ____________

language is c++

Answer 1

a) "Hello" prints 9 times

b) num = 1

// Screenshot of the code

// Sample output

// Code to copy

#include<iostream>
using namespace std;

int main(){
  
   int num=10;
  
do
{
  
cout << "Hello" << endl;
  
   num--;
  
} while(num > 1);
  
cout<<num;
  
   return 0;
}

Explanation:

The body of Do loop executes until the condition in While becomes false.

initially num=10

after iteration1: Hello prints and num decreases by 1 i.e num=9

after iteration2:Hello prints and num decreases by 1 i.e num=8

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after iteration9:Hello prints and num decreases by 1 i.e num=1

now the condition inside While loop 1 > 1 false , so skips the while continues with next statement.

Thus hello prints 9 times & num=1 after all statements executed as initiallally num=10