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.
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
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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F03d33dc8-8894-4cf2-8275-55baded897d9%2F3196afe5-f138-4750-a233-3d75c75818c5%2Fnnjr1y_processed.jpeg&w=3840&q=75)
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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F03d33dc8-8894-4cf2-8275-55baded897d9%2F3196afe5-f138-4750-a233-3d75c75818c5%2Fln7i1s_processed.png&w=3840&q=75)
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
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