What is the difference between static classes and singleton instances in C#?

static

• static is a keyword
• static class can only contain static members
• static Objects are stored on the stack.
• Static cannot implement interfaces, nor can it inherit from other classes

Single case

• Single case is a design pattern
• Single case Example is an object creation pattern with only one class instance
• A singleton can implement interfaces, inherit other classes, and is consistent with the concepts of object-oriented programming
• A singleton object can be passed as a reference
• The singleton supports the release of objects
• The singleton object is stored in the heap
• The singleton object can be cloned
• The singleton object is stored in the heap

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