Questions 1. Why is the typecast operator needed to compute the mean in the statement mean = static_cast(float)(total)/value? What do you think will happen if it is removed? Modify the code and try it. Record what happens. Make sure that you try both even and odd cases. Now put static_cast total back in the program. 2. What happens if you enter a float such as 4.58 instead of an integer for value? Try it and record the results.

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
icon
Related questions
Question
<< endl; return
0;
}
Questions
1. Why is the typecast operator needed to compute the mean in the statement mean =
static_cast(float)(total)/value? What do you think will happen if it is removed? Modify
the code and try it. Record what happens. Make sure that you try both even and odd
cases. Now put static_cast<float> total back in the program.
2. What happens if you enter a float such as 4.58 instead of an integer for value? Try it
and record the results.
Transcribed Image Text:<< endl; return 0; } Questions 1. Why is the typecast operator needed to compute the mean in the statement mean = static_cast(float)(total)/value? What do you think will happen if it is removed? Modify the code and try it. Record what happens. Make sure that you try both even and odd cases. Now put static_cast<float> total back in the program. 2. What happens if you enter a float such as 4.58 instead of an integer for value? Try it and record the results.
// This program has the user input a number n and then finds the I/
mean of the first n positive integers.
#include <iostream>
using namespace std;
UM
int main()
{
int value;
int total = 0;
Il value is some positive number n
Il total holds the sum of the first n
//positive numbers
Il the amount of numbers float mean;
/ the average of the first n positive
I/ numbers
int number,
cout << "Please enter a positive integer"
cin >> value;
if (value > 0)
{
for (number = 1; number <= value; number++)
{
total = total + number;
mean = static_cast<float>(total) / value;
note the use of the typecast operator here
<< "The mean average of the first "<< value
//
cout
<< "positive integers is "<< mean << endl;
}
else cout << "Invalid input - integer must be positive"
AO
Transcribed Image Text:// This program has the user input a number n and then finds the I/ mean of the first n positive integers. #include <iostream> using namespace std; UM int main() { int value; int total = 0; Il value is some positive number n Il total holds the sum of the first n //positive numbers Il the amount of numbers float mean; / the average of the first n positive I/ numbers int number, cout << "Please enter a positive integer" cin >> value; if (value > 0) { for (number = 1; number <= value; number++) { total = total + number; mean = static_cast<float>(total) / value; note the use of the typecast operator here << "The mean average of the first "<< value // cout << "positive integers is "<< mean << endl; } else cout << "Invalid input - integer must be positive" AO
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Hiring Problem
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education