This chapter covers the Singleton pattern.
GoF Definition
Ensure a class has only one instance, and provide a global point of access to it.
Concept
A particular class should have only one instance. You can use this instance whenever you need it and therefore avoid creating unnecessary objects.
Real-Life Example
Suppose you are a member of a sports team and your team is participating in a tournament. When your team plays against another team, as per the rules of the game, the captains of the two sides must have a coin toss. If your team does not have a captain, you need to elect ...
