1) Write a program that uses while loops to perform the following steps: a) prom

Question

1) Write a program that uses while loops to perform the following steps:

a) promot the user to input two integers: firstNum and secondNum (firstNum must be less than secondNum)

b) Output all odd numbers between firstNum and secondNum.

c) Output the sum of all even numbers between firstNum and secondNum.

d) Output the numbers and their squares between 1 and 10.

e) Output the sum of squar of the odd numbers between firstNum and secondNum.

f) Output all uppercase letters.

2) Redo Programming Exercise 1 using for loops

Explanation / Answer

#include <iostream>
#include <iomanip>

using namespace std;

int main()
{
int firstNum, secondNum;
int sumEvenNum = 0;
int sumSquareOddNum = 0;

char chCounter;

int counter;

cout << "name" << endl;

//Part a
cout << "Enter two numbers." << endl;
cout << "First number must be less than ";
cout << "the second number you enter" << endl;
cout << "Enter numbers: " << flush;
cin >> firstNum >> secondNum;
cout << endl;

//Part b
if (firstNum % 2 == 0)
counter = firstNum + 1;
else
counter = firstNum;

cout << "Odd integers between " << firstNum << " and "
<< secondNum << " are: " << endl;

while (counter <= secondNum)
{
cout << counter << " ";
counter = counter + 2;
}

cout << endl;

//Part c
if (firstNum % 2 == 0)
counter = firstNum;
else
counter = firstNum + 1;

while (counter <= secondNum)
{
sumEvenNum = sumEvenNum + counter;
counter = counter + 2;
}

cout << "Sum of even integers between " << firstNum << " and "
<< secondNum << " = " << sumEvenNum << endl;

//Part d
cout << "Number Square of Number" << endl;
counter = 1;
while (counter <= 10)
{
cout << setw(4) << counter << setw(18)
<< counter * counter << endl;
counter++;
}

cout << endl;

//Part e
if (firstNum % 2 == 0)
counter = firstNum + 1;
else
counter = firstNum;

while (counter <= secondNum)
{
sumSquareOddNum = sumSquareOddNum + counter * counter;
counter = counter + 2;
}

cout << "Sum of the squares of odd integers between "
<< firstNum << " and " << secondNum << " = "
<< sumSquareOddNum << endl;

//Part f
cout << "Upper case letters are: ";

chCounter = 'A';
while (chCounter <= 'Z')
{
cout << chCounter << " ";
chCounter++;
}
cout << endl;


cin.ignore(cin.rdbuf()->in_avail() + 1);

cout << "Press the enter key to exit";
cin.ignore(cin.rdbuf()->in_avail() + 1);

return 0;
}

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