Week2_Homework_Commenting_on_Code.cls

//a class called "CommentingOnCodeExercise" is being declared
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.
     */

    //A method called "cartValues" is being declared that can be used outside of this class (hence "public")
    public static void cartValues() { 
        
     //A primitive variable (integer) called "minimumCartValue" is being declared and initialized with the value of "50"
        Integer minimumCartValue = 50;

     //A primitive variable (integer) called "itemA" is being declared and initialized with the value of "10"
        Integer itemA = 10;
     
     //A primitive variable (integer) called "itemB" is being declared and initialized with the value of "20"
        Integer itemB = 20;
    
     //A primitive variable (integer) called "itemC" is being declared and initialized with the value of "10"
        Integer itemC = 45; 

    //A primitive variable (integer) called "cartValue" is being declared and initialized with the sum of the integers "itemA" and "itemB"
        Integer cartValue = itemA + itemB; 
        
    //A primitive variable (boolean) called "cartMinimumMet" is being declared and initialized with a comparison 
    //between two integers declared and initialized above, specifically "cartValue" and "minimumCartValue",
    //to check if the former is greater than - or equal to - the latter
        Boolean cartMinimumMet = cartValue >= minimumCartValue; 

    //A specified string ('Have we reached the minimum: ') and the value of the boolean "cartMinimumMet" are being concatenated and printed
        System.debug('Have we reached the minimum: ' + cartMinimumMet); 

   // The integer "cartValue" is being assigned a new value: the sum of (1) its previous value and (2) the value of the integer "itemC"
        cartValue = cartValue + itemC; 

   //A primitive variable (boolean) called "cartMinimumMet" that was previously declared and assigned a value, is being assigned 
   //a new value: a comparison between (1) the new value of the integer "cartValue" and (2) the integer "minimumCartValue",
   //to check if the former is greater than - or equal to - the latter   
        cartMinimumMet = cartValue >= minimumCartValue; 

    //A specified string ('How about now? : ') and the value of the boolean "cartMinimumMet" are being concatenated and printed  
        System.debug('How about now? : ' + cartMinimumMet); 

    } // end of method


} // end of class

Beautiful comments..clear and concise.