Design Patterns and Best Practices in Java

Car builder example

In this section, we are going to apply the builder pattern to our car software. We have a Car class and we need to create instances of it. Depending on the components we add to the car, we can build sedan cars and sports cars. When we start designing our software, we realize the following:

• The Car class is quite complex, and creating class objects is a complex operation too. Adding all of the instantiation logic in the Car constructor will make the class quite big.
• We need to build several types of cars. Usually, for this scenario, we add several different constructors, but our intuition is telling us that this is not the best solution.
• In the future, we probably need to build different types of car objects. The demand ...