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What is the use of making constructor private in a class?
When is it useful to use a private constructor? What about a protected one?
Possible Duplicate: What is the use of making constructor private in a class? When
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Possible Duplicate:
What is the use of making constructor private in a class?
When is it useful to use a private constructor? What about a protected one?
it’s useful when you want to prevent external instantiation of an object, e.g. static factory classes, singletons, and etc.