What is the output of the following code, assuming variables are declared and header files are all included? sum = 0; for (i = 1; i <= 5; i++) newNum = i;
What is the output of the following code, assuming variables are declared and header files are all included? sum = 0; for (i = 1; i <= 5; i++) newNum = i;
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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C++

Transcribed Image Text:### Code Output Question
**Question:**
What is the output of the following code, assuming variables are declared and header files are all included?
```cpp
sum = 0;
for (i = 1; i <= 5; i++)
{
newNum = i;
sum = sum + newNum;
}
cout << "The sum is " << sum << "." << endl;
```
**Multiple Choice Answers:**
- O The sum is 15
- O The sum is 10
- O The sum is 10.
- O The sum is 15.
**Explanation:**
In this C++ code snippet, a `for` loop is executed where the loop counter `i` iterates from 1 to 5 (inclusive). In each iteration, the current value of `i` is assigned to `newNum`, and this value is added to `sum`.
Step-by-step, the loop performs the following calculations:
- When `i = 1`, `sum = 0 + 1 = 1`
- When `i = 2`, `sum = 1 + 2 = 3`
- When `i = 3`, `sum = 3 + 3 = 6`
- When `i = 4`, `sum = 6 + 4 = 10`
- When `i = 5`, `sum = 10 + 5 = 15`
Therefore, after the loop completes, the output printed by `cout` is `"The sum is 15."`.
The correct answer is: **The sum is 15**.
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