Question 3int x = 0;while (x < 5){cout << "hello world";x = x + 1;}// How many times does this code execute the line cout << "hello world";O453

Answered: Question 3 int x = 0; while (x<5) {…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question 3

While loop only execute when the condition is true. If it is false it comes out of the loop.

Here the while loop is executing based on the condition x<5. And the integer variable x is initially 0. And the while loop execute until x<5 that is it will terminate from the while loop when the value of x=5.

So when

x=0 it display "hello world"

x=1 it display "hello world"

x=2 it display "hello world"

x=3 it display "hello world"

x=4 it display "hello world"

x=5 it not display "hello world". Because while loop condition will be 5< 5 and it is not True . So the "cout" statement will not execute. That is at x=5 it not enter to the loop statement. The control comes out of the loop.

So here the while loop execute until x=4, That is the statement cout << "hello world" will execute 5 times in the code.

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