Strategy Pattern
Learn about the strategy pattern in detail.
We'll cover the following...
Before moving on to discuss the strategy pattern, let’s discuss why we might need to use the strategy pattern in the first place.
Example
Suppose we have a class with the name Car
, and we inherit the two classes Sportscar
and Sedan
.
In the illustration above, we can see that the car method has three functions:
milesDriven()
: In our example, we assume it will remain the same for all types of cars.getPrice()
: This will be different for each car and will be implemented by theSportsCar
andSedan
classes to calculate their prices.getFuelConsumption()
: We can assume that bothSedan
andSportCar
are using fossil fuel and calculate the fuel consumption accordingly. Hence, they can inherit this function.
So far, so good. Let’s assume we have added three ...