Question

a C++ program that reads in weight in pounds and outputs the equivalent length in Kilograms and grams. Use at least three functions: one for input, one or more for calculating, and one for output. Include a loop that lets the user repeat this computation for new input values until the user says he or she wants to end the program. 1 pound (lb) is equal to 0.45359237 kilograms (kg). There are 1000 grams in a kilogram and 16 ounces in a pound. Its important that (lets the user repeat this computation for new input values until the user says he or she wants to end the program)!!

Answer 1

Program:

#include <iostream>

using namespace std;

int getInput() { // This method helps to take the input from user
    int poundWeight;
    // Take weight as input from user in pounds.
    // Enter -1 to exit
    cout << "Enter -1 to exit" << endl;
    cout << "Enter weight in pounds : ";
    cin >> poundWeight;
    return poundWeight;
}

// This method returns weight in Kilograms for given pounds
float calculateWeight(int poundWeight) {
    float weightInKilos = poundWeight * 0.45359237;
    return weightInKilos;
} 

void getOutput(int poundWeight) {
    float weightInKilos = calculateWeight(poundWeight);
    // Calculate weight in grams for the given Kilograms
    float weightInGrams = weightInKilos * 1000;
    // Printing output
    cout << "Weight in Kilograms : " << weightInKilos << " Kilos"<< endl;
    cout << "Weight in Grams : " << weightInGrams << " grams" << endl;
}

int main()
{
    // Taking input from user
    int inputWeight = getInput();
    // Checking condition to exit the loop
    while(inputWeight != -1) {
        getOutput(inputWeight);
        inputWeight = getInput();
    }
    return 0;
}

Output: