Please explain this program to me. For example, why this program wrote like this and etc. please give me as much details as you can. Thank you 3 using namespace std;4Program 6-22tion arguments. It has a function that displays aster-isks on the screen. This function receives argumentsillustrates the use of default func-5 // Function prototype with default argu-ments6 void displayStars(int starsPerRow =10,specifying how many rows of asterisks to display= 1);int numRowsand how many asterisks to print on each row.7Default arguments are provided to display one rowof 10 asterisks.8 int main( )9 {10displayStars();// starsPerRow &numRows use defaults (10 & 1)Program 6-2211cout <« endl;12displayStars (5);// starsPerRow 5.numRows uses default value 11 // This program demonstrates the use of13cout <« endl;default function arguments.14displayStars(7, 3); // starsPerRow 7.2 #include Page 1,493Page 1,4945 pages left in this chapter numRows 3. No defaults used.15return 0;16 }24 void displayStars(int starsPerRow, int17numRows )1825 {26// Nested loop. The outer loop con-trols the rows and19displayStars27// the inner loop controls the numberof stars per row.20This function displays a rectangle28for (int row1; row <= numRows;made of asterisks.*row++)21If arguments are not passed to it, it29{uses the default *30for (int star1; star <= stars-22arguments 10 for starsPerRow and 1PerRow; star++)for numRows.31cout <<2332cout <« endl;Page 1,495Page 1,4963 pages left in this chapter

Answered: explain this program to me. For…

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

Please explain this program to me. For example, why this program wrote like this and etc. please give me as much details as you can. Thank you

3 using namespace std;
4
Program 6-22
tion arguments. It has a function that displays aster-
isks on the screen. This function receives arguments
illustrates the use of default func-
5 // Function prototype with default argu-
ments
6 void displayStars(int starsPerRow =
10,
specifying how many rows of asterisks to display
= 1);
int numRows
and how many asterisks to print on each row.
7
Default arguments are provided to display one row
of 10 asterisks.
8 int main( )
9 {
10
displayStars();
// starsPerRow &
numRows use defaults (10 & 1)
Program 6-22
11
cout <« endl;
12
displayStars (5);
// starsPerRow 5.
numRows uses default value 1
1 // This program demonstrates the use of
13
cout <« endl;
default function arguments.
14
displayStars(7, 3); // starsPerRow 7.
2 #include <iostream>
Page 1,493
Page 1,494
5 pages left in this chapter

numRows 3. No defaults used.
15
return 0;
16 }
24 void displayStars(int starsPerRow, int
17
numRows )
18
25 {
26
// Nested loop. The outer loop con-
trols the rows and
19
displayStars
27
// the inner loop controls the number
of stars per row.
20
This function displays a rectangle
28
for (int row
1; row <= numRows;
made of asterisks.
*
row++)
21
If arguments are not passed to it, it
29
{
uses the default *
30
for (int star
1; star <= stars-
22
arguments 10 for starsPerRow and 1
PerRow; star++)
for numRows.
31
cout <<
23
32
cout <« endl;
Page 1,495
Page 1,496
3 pages left in this chapter

Expert Solution

Step 1

The usage of default function parameters is demonstrated in this example. It features a feature that makes asterisks appear on the screen. This function takes two arguments: the number of asterisk rows to display and the number of asterisks to print on each row. To show one row of ten asterisks, default parameters are supplied.

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