I am posting the discussion post. This is from the author. Just need to response in 4 to 6 sentences. The topic for this is software development design.

 

 

I spent several years working as a Volkswagen technician and an analogy I like to think of related to the association between classes and objects is this;

 

pseudo code:

 

class Volkswagen {

 

string vin;

string engineModel;

           

           void gasPedal (Boolean depressed) {

                      isDepressed = depressed;

                       if depressed = true {

                                  Volkswagen.move(5);

                       }

           }

 

           void move (int distance) {

                       if distance > 0 then {

                       moveForward (distance);

                       }

           }

 

           void assignVin (string newVin){

                       vin = newVin;

           }

 

           Void assignEngineModel (string newEngineModel) {

                      engineModel = newEngineModel;

           }

}

 

 

class VolkswagenCar {

           public static void main(String[] args) {

           

           //Create new Volkswagen object

           //Generate a beetle object

           Volkswagen beetle = new Volkswagen();

 

           //Invoke methods on newly created object

           beetle.gasPedal(True);

           beetle.assignVin(1N13AQRXS321);

           beetle.assignEngineModel(3.5T);

           }

}

 

The class Volkswagen acts as a blue print. All Volkswagens have a gas pedal to allow a car to move forward; this would describe the behaviors involved in all Volkswagens. In the example above, the object created was a Beetle. That beetle runs the gasPedal method passing a Boolean value of true. Similarly, all Volkswagens have engines, and vin numbers. Associated behaviors are illustrated above for those two methods invoked by the beetle object.