Arrays & Enum

An enum can be thought of as a collection of integer constants.

The type of these constants is int by default unless you specify a different integer type such as byte or long when declaring the enum.

A variable of an enum type can only be set to one enum constant at a time unless the enum is decorated with the Flags attribute which enables values to be combined.

A struct is similar to a class except that:

1. It usually represents a type with a small memory footprint (no more than 16 bytes) so that it can be copied without affecting performance. The basic types such as int, long, byte, double, float, decimal, bool and char are all C# aliases for structs defined in the .NET framework.

2. Structs are value types. This means that a variable of a struct type holds an instance of the struct itself not a reference to it as would be the case with classes which are reference types.

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Vulpes13y ago
An enum can be thought of as a collection of integer constants.

The type of these constants is int by default unless you specify a different integer type such as byte or long when declaring the enum.

A variable of an enum type can only be set to one enum constant at a time unless the enum is decorated with the Flags attribute which enables values to be combined.

A struct is similar to a class except that:

1. It usually represents a type with a small memory footprint (no more than 16 bytes) so that it can be copied without affecting performance. The basic types such as int, long, byte, double, float, decimal, bool and char are all C# aliases for structs defined in the .NET framework.

2. Structs are value types. This means that a variable of a struct type holds an instance of the struct itself not a reference to it as would be the case with classes which are reference types.