Commenting on Code Exercise.cls

public with sharing class CommentingOnCodeExercise {

    /**
     * Your Assignment is to add comments describing what is being done in the methods below.
     * Call out the concepts you learned in your readings and in class.
     */

    public static void cartValues() {

        Integer minimumCartValue = 50; // We are declaring an integer variable (minimumCartValue) with a value 50

        Integer itemA = 10; // We are declaring an integer variable (itemA) with the value of 10
        Integer itemB = 20; // We are declaring an integer variable (itemB) with the value of 20
        Integer itemC = 45; // We are declaring an integer variable (itemC) with the value of 45

        Integer cartValue = itemA + itemB; // We are declaring an integer variable (cartValue) with the value of itemA (10) plus itemB (20) which equals 30

        Boolean cartMinimumMet = cartValue >= minimumCartValue; /* We are declaring a boolean variable (cartMiniumMet) 
                                                                 * which returns the value of false since the cartValue of 30
                                                                 * is not greater than or equal to the minimumCartValue of 50 */

        System.debug('Have we reached the minimum: ' + cartMinimumMet); /* We are testing to see if we have met the minimum
                                                                         * We have a string that says "Have we reached the minimum:" then the value of cartMinimumMet
                                                                         * system debug should return the value of "Have we reached the minimum: False" */

        cartValue = cartValue + itemC; // We are declaring a new value to cartValue where the old value (30) plus itemC (45) equals the new value (75)

        cartMinimumMet = cartValue >= minimumCartValue; /* We are declaring a new value to cartMinimumMet 
                                                         * where the new cartValue (75) is greater than or equal to the minimumCartValue (50)
                                                         * which should return the boolean value of true */

        System.debug('How about now? : ' + cartMinimumMet); /* We are testing to see if we have met the minimum
                                                             * We have a string that says "How about now? :" then the value of cartMinimumMet
                                                             * system debug should return the value of "How about now?: True" */

    }


}