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After getting introduced to Design Patterns we have so far examined the following patterns:

• Adapter Pattern
• Facade pattern
• Composite Pattern
• Bridge Pattern
• Singleton Pattern
• Observer Pattern
• Proxy Pattern

Now, we will now get to know the Chain of Responsibility Design Pattern.

The Chain of Responsibility pattern is a behavior pattern in which a group of objects is chained together in a sequence and a responsibility (a request) is provided in order to be handled by the group. If an object in the group can process the particular request, it does so and returns the corresponding response. Otherwise, it forwards the request to the subsequent object in the group.

Via a real life example, you will learn how and when the Chain of Responsibility design pattern should be used and how to structure your code in order to implement it. You will see how it can lead to elegant solutions to code problems.

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