Design Patterns

Design patterns are typical solutions to commonly occurring problems in software design. They are like 

• pre-made blueprints that you can customize to solve a recurring design problem in your code.
• is a general repeatable solution to a commonly occurring problem in software design.
• describes the problem, the solution, when to apply the solution, and its consequences.

Uses of design pattern

• It can speed up the development process by providing tested, proven development paradigms.
• It does provide general solutions, documented in a format that doesn't require specifics tied to a particular problem.
• It allows developers to communicate using well-known, well understood names for software interactions

Broad Categories of Design Patterns

• Creational patterns
• Structural patterns
• Behavioral patterns