Working with arrays

#include <iostream>
#include <iomanip>
using namespace std;

int main() // Declare int main so that the program knows where to start
{

// Declarations

double hoursWorked[5]; // This is the array for hoursWorked
                    // I have [5] because we have to be inclusize of 4. If you set it to 4, it will do a core dump.
                    // Core dump means we went into memory we aren't allowed to be in
                    // What actually defines an arry is the [] if the [] weren't there it would just be an int called hoursWorked
                    // You can also declare the array as any type of variable seen below
string dayWorked[5]; // This is the array for the dayWorked
                     // Again, [5] to be inclusize of 4
double total;        // We will use this later to total up the hours

// Initalizations

                      // We also have to initalize these to 0. You have to call each one array that you said there would be above
                      // In this case we said there will be 0 - 4 so we initalize 0 to 4
hoursWorked[0] = 0.0; // Remember to initalize 0
hoursWorked[1] = 0.0; // Initalizing 1
hoursWorked[2] = 0.0; // Initalizing 2
hoursWorked[3] = 0.0; // Initalizing 3
hoursWorked[4] = 0.0; // Initalizing 4
                      // Next lets initalize all of those strings we said there would be
dayWorked[0] = " ";   // Initalize 0
dayWorked[1] = " ";   // Initalize 1
dayWorked[2] = " ";   // Initalize 2
dayWorked[3] = " ";   // Initalize 3
dayWorked[4] = " ";   // Initalize 4

total = 0.0;          // Initalize total

// Input

                    // Next lets do something with all these variables

                                                // Create a for loop that counts up to 5 so we can have all of the days of the week
                    for(int i = 0; i < 5; ++i)  // First declare a variable. int i = 0; means integer i is equal to zero.
                                                // We want to declare a variable there because TECHNICALLY if i was declare i outside of that line
                                                // it would be called a global variable. which isn't allowed
                                                // then we do i < 5
                                                // then we tell it at each loop to add 1 to i. ++ means add 1 to the variable
                    { // Open the for loop

                        cout << "Please enter the day worked: "; // tell the user to enter the day worked
                        cin >> dayWorked[i];                     // This puts the string they enter into dayWorked and puts it in whatever i equals.
                                                                 // This means if i = 1 then we are putting what they enter into dayWorked[1]
                                                                 // This goes for the whole loop from 0 to 4
                                                                 // the i comes from the int i defined in the for loop line on line 39

                        cout << endl << "Please enter the amount of hours worked for that day: "; // Now ask the user to enter the hours
                        cin >> hoursWorked[i];                                                    // Again same as above
                                                                                                  // Stores the entered number in hoursWorked[i]
                    } // close the for loop

// Process

                     // Now lets do some work with this. We are going to have it total up the hours and give us a total
                     total = hoursWorked[0]+hoursWorked[1]+hoursWorked[2]+hoursWorked[3]+hoursWorked[4];
                     // The above adds up all of the hoursWorked that were taken in during our above for loop

// Output

                     // Now lets output the array use another for loop

                     for(int i = 0; i < 5; ++i) // create the for loop refer to line 42

                     { //open the for loop

                         cout << "Day: " << dayWorked[i] << endl; // It is going to cout the dayWorked from 0 up to 4
                         cout << "Hours for that day: " << hoursWorked[i] << endl; // It is going to cout the hoursWorked from 0 up to 4

                     } // close the for loop
                         cout << "total hours worked: " << total; // this is going to cout the total hours worked
                                                                  // We put the total on the outside of the for loop
                                                                  // we do this or else it would output the total everytime the for loop looped
// Process

return 0;
}