The Adapter Design Pattern works as a bridge between two incompatible interfaces. The person John is from the USA and he … One of the great real life example of Adapter design pattern is mobile charger. This article is contributed by Sulabh Kumar. The Adapter Pattern is an often-used pattern in object-oriented programming languages. For example consider a USB to Ethernet adapter. After : ToyDuck toyDuck = new BirdAdapter(sparrow); Interfaces may be incompatible but the inner functionality should suit the need. See your article appearing on the GeeksforGeeks main page and help other Geeks. You can see that by changing just one line the toyDuck can now do Chirp Chirp !! We have two model objects Student.java and Employee.java. By using our site, you Adapter Design Pattern Real World Example. Helps achieve reusability and flexibility. This pattern is part of the Structural Design Patterns. Client receive the results of the call and is unaware of adapter’s presence. We need this when we have an Ethernet interface on one end and USB on the other. In software engineering, the adapter pattern is a software design pattern (also known as wrapper, an alternative naming shared with the decorator pattern) that allows the interface of an existing class to be used as another interface. Object Adapter Vs Class Adapter The client makes a request to the adapter by calling a method on it using the target interface. Software Examples of Adapter Patterns: Wrappers. In real world the easy and simple example that comes to mind for an adapter is the travel power adapter. Results of the Adapter pattern for an object. Some other examples worth noticing is as below: 1) java.util.Arrays#asList() This method accepts multiple strings and return a list of input strings. Adapter design pattern example in software Let’s assume an example of a student who becomes an employee after candidate selection process. If you like GeeksforGeeks and would like to contribute, you can also write an article and mail your article to [email protected]. The adapter pattern convert the interface of a class into another interface clients expect. Many examples of Adapter are trivial or unrealistic (Rectangle vs. LegacyRectangle, Ratchet vs. Socket, SquarePeg vs RoundPeg, Duck vs. Turkey).Worse, many don't show multiple Adapters for different Adaptees (someone cited Java's Arrays.asList as an example of the adapter pattern).Adapting an interface of only one class to work with another seems a weak example of the GoF Adapter pattern. Adapter design pattern is a structural pattern.Adapter pattern lets two components work together which have incompatible interfaces.It is useful if we need to implement some functionality in our application and a class already exists which provides the required functionality.But The existing class providing the required functionality has a different interface than the one expected by the client.Here we will … Figure 2. Class diagram of Class Adapter Pattern: Here instead of having an adaptee object inside adapter (composition) to make use of its functionality adapter inherits the adaptee. Structure of the Adapter pattern. edit Moving on to the concept of Design Patterns, let's explain the Adapter Design Pattern. We use the adapter design pattern where the requirements is to convert between one interface to another. We use cookies to ensure you have the best browsing experience on our website. 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