If a snake swallows someone in a dream, it means that he will reach a powerful position. If one sees a snake sitting over his head in a dream, it means that he will earn the respect of people in authority. A field which is covered with snakes in a dream represents a destructive rain.
Make the class of the single instance responsible for access and initialization on first use. The single instance is a private static attribute. The accessor function is a public static method. The Singleton pattern ensures that a class has only one instance and provides a global point of access to that instance. It is named after the singleton set, which is defined to be a set containing one element. The office of the President of the United States is a Singleton.
For example, the Int32 class wraps the int data type, and the Double class wraps the double data type. On the other hand, all primitive data types in C# are objects in the System namespace. For each data type, a short name, or alias, is provided. For instance, int is the short name for System.Int32 and double is the short form of System.Double. The list of C# data types and their aliases is provided in the following table.