Home techblogs software-design-patterns behavioral-design-pattterns

Behavioral Design Patterns

Strategy Pattern

Code Explanation:

Strategy.java

OperationAdd.java

OperationSubtract.java

OperationMultiply.java

Context.java

StrategyPatternDemo.java

Observer Pattern

Note:- Observers are subscribed to subject and have one to many relationships and whenever subject publishes observers gets notifications. It follows push based approach and whenever they have something they push to the observers.