The main function of the bridge pattern is to separate the implementation part from the abstraction part so that the abstraction and implementation of a class can vary independently. i.e supports two hierarchies that can grow independently

There are in two part in Bridge Pattern: *Implementation or Body *Abstraction or Handling

When to use Bridge Pattern *When both implementation and its functional abstraction needs are extended using another sub-class. *When you don't want to affect clients due to changes in implementation. *When you want to avoid permanent binding between implementation and its functional abstraction.