14. Desktop testing or simulation¶
Understanding that the value of variables can change during program execution is not so natural, but it is fundamental when programming
A program cannot be read as text, but carefully analyzing line by line
You can practice with pencil, eraser, and paper
debt  | 
purchase  | 
Screen  | 
|---|---|---|
-0-  | 
-100-  | 
600  | 
-100-  | 
-200-  | 
|
-300-  | 
300  | 
|
600  | 
14.1. Don’t rush desktop testing¶
    You have attempted  of  activities on this page 
  
  
    
  
