Proxy Pattern   In proxy pattern, a class represents functionality of another class. This type of design pattern comes under structural pattern. In proxy pattern, we create object having original object to interface its functionality to outer world. Proxy design pattern intent according to GoF is: Provide a surrogate or placeholder for another object to control …

It is well known that the majority of the cost of software is not in its initial development, but in its ongoing maintenance—fixing bugs, keeping its systems operational, investigating failures, adapting it to new platforms, modifying it for new use cases, technical debt, and adding new features. Yet, unfortunately, many people working on software systems …