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- What is strategy pattern in Java with example?
- What is strategy in Java?
- What problem is solved by the strategy pattern in Java?
- What is the use of a strategy pattern give an example where it can be used?
What is strategy pattern in Java with example?
Strategy pattern is also known as Policy Pattern. We define multiple algorithms and let client application pass the algorithm to be used as a parameter. One of the best example of strategy pattern is Collections.sort() method that takes Comparator parameter.
What is strategy in Java?
Strategy is a behavioral design pattern that turns a set of behaviors into objects and makes them interchangeable inside original context object. The original object, called context, holds a reference to a strategy object. The context delegates executing the behavior to the linked strategy object.
What problem is solved by the strategy pattern in Java?
The strategy pattern is useful for situations where it is necessary to dynamically swap the algorithms used in an application. The strategy pattern is intended to provide a means to define a family of algorithms, encapsulate each one as an object, and make them interchangeable.
What is the use of a strategy pattern give an example where it can be used?
Use the Strategy pattern when you want to use different variants of an algorithm within an object and be able to switch from one algorithm to another during runtime. Use the Strategy when you have a lot of similar classes that only differ in the way they execute some behavior.
