Class VS Structs
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A short summary of each:
Classes Only:
- Can support inheritance
- Are reference (pointer) types
- The reference can be null
- Have memory overhead per new instance
Structs Only:
- Cannot support inheritance
- Are value types
- Are passed by value (like integers)
- Cannot have a null reference (unless Nullable is used)
- Do not have a memory overhead per new instance - unless 'boxed'
Both Classes and Structs:
- Are compound data types typically used to contain a few variables that have some logical relationship
- Can contain methods and events
- Can support interfaces
http://stackoverflow.com/questions/13049/whats-the-difference-between-struct-and-class-in-net
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