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lihaoquan
12,045 PointsWhat is a Singleton?
Can anyone explain to me what a Singleton is and what it is used for? When and why to use it? Please enlighten me.
2 Answers
Gavin Ralston
28,770 PointsA singleton is a class you only ever want one of, and you want/need it to be called from many places in your code
A common example of when you'd "want" to use the pattern is with a simple logger. Many parts of your code may want to use a logger, and so you have a kind of global object you can call on to do your logging for you.
Matt Brock
28,330 PointsHere's a good writeup on Singletons.
lihaoquan
12,045 PointsThanks, ill definitely read it.
lihaoquan
12,045 Pointslihaoquan
12,045 PointsThanks!