C# Box

 1.  Single responsibility principle (SRP) : An entity or software module should only have a single responsibility. You should avoid granting one entity multiple responsibilities. 2.  Open-closed principle (OCP) : Entities should be designed in such a way that they are open for extension but closed for modification. This means regression testing of existing behaviors can be avoided; only extensions need to be tested. 3. Liskov substitution principle (LSP) : Parent or base class instances should be replaceable with instances of their derived classes or subtypes without altering the sanity of the program. 4. Interface segregation principle (ISP) : Instead of one common large interface, you should plan multiple, scenario-specific interfaces for better decoupling and change management. 5. Dependency inversion principle (DIP) : You should avoid having any direct dependency on concrete implementations. High-level modules and low-level modules should not depend on eac...