### Code Example: Repetition Structures#### Figure 8-20: Code for Lab 8-5```cppint sumX = 0;int sumY = 0;for (int x = 2; x < 7; x += 2) { sumX += x; for (int y = 1; y < 4; y += 2) { sumY += y; } // end for} // end forcout << "sumX value: " << sumX << endl;cout << "sumY value: " << sumY << endl;```### Explanation:This code snippet demonstrates the use of nested `for` loops in C++ to calculate the sums of two series of numbers.- **Outer Loop:** - Iterates variable `x` from 2 to 6 (inclusive) in increments of 2. - Updates `sumX` by adding the value of `x` in each iteration.- **Inner Loop:** - Iterates variable `y` from 1 to 3 (inclusive) in increments of 2, for each value of `x`. - Updates `sumY` by adding the value of `y` in each iteration.- **Output:** - Prints the total of `sumX` and `sumY` after the loops complete. **LAB 8-5: Desk-Check**Desk-check the code shown in Figure 8-20. What will the code display on the computer screen? What is the value in the x variable when the outer for loop ends? What is the value in the y variable when the nested for loop ends?

Output: sumX value: 12 sumY value: 12 Explanation: x y sumX sumY 2 1 2 1 2 3 2 4 2 5 2 4…

Desk-check the code shown in Figure 8-20. What will the code display on the computer screen? What is the value in the x variable when the outer for loop ends? What is the value in the y variable when the nested for loop ends?

Desk-check the code shown in Figure 8-20. What will the code display on the computer screen? What is the value in the x variable when the outer for loop ends? What is the value in the y variable when the nested for loop ends?

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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Concept explainers

Computer Fundamentals

The computer is termed computation. For calculating or computing something the device that has been used is known as the computer. Or we can say that for performing a fast arithmetic operation the device that has been used is a computer. Storing, processing, and retrieving are the main features of a computer. 

Question

### Code Example: Repetition Structures

#### Figure 8-20: Code for Lab 8-5

```cpp
int sumX = 0;
int sumY = 0;

for (int x = 2; x < 7; x += 2) {
sumX += x;
for (int y = 1; y < 4; y += 2) {
sumY += y;
} // end for
} // end for

cout << "sumX value: " << sumX << endl;
cout << "sumY value: " << sumY << endl;
```

### Explanation:

This code snippet demonstrates the use of nested `for` loops in C++ to calculate the sums of two series of numbers.

- **Outer Loop:**
- Iterates variable `x` from 2 to 6 (inclusive) in increments of 2.
- Updates `sumX` by adding the value of `x` in each iteration.

- **Inner Loop:**
- Iterates variable `y` from 1 to 3 (inclusive) in increments of 2, for each value of `x`.
- Updates `sumY` by adding the value of `y` in each iteration.

- **Output:**
- Prints the total of `sumX` and `sumY` after the loops complete.

**LAB 8-5: Desk-Check**

Desk-check the code shown in Figure 8-20. What will the code display on the computer screen? What is the value in the x variable when the outer for loop ends? What is the value in the y variable when the nested for loop ends?

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