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Question: What is the use of private constructor in java

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User: mohit555 Post Date: 21 Feb 2012 06:31

Introduction:
What is the use of private constructor in java



Answer:
  Private constructor is used in java in the following places

  a)used in utility classes

  b)used in factory method pattern

  c)used in singleton pattern

  So if you are using private constructor only that class can

  instantiate the object.



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