Chapter 1-Lesson 1

• Value types are also objects
• These include Built-in types, structures and enums
• Better use Int32 for interger operations and Double for floating point
• Booleans are 4-byte value types (I thought they used 1-bit)
• There are nearly 300 value types in .NET
• Value type vvariables can be declared Nullable ( C# shortcut ?, as in float? amount; )
• Structures are referred to as User-Defined Types.
• Value types are stored over Stack in memory
• Reference types are stored over a Managed Heap in memory.
• Usually, create structures when requiring instances of size less that 16 bytes that require no inheritance, ploymorphism, etc.
• The default base-type for enum is int
• To create enum with another base type we can use enum Days : byte { ... }
• Enum base type cannot be char