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Categories >> Software >> Java-Related >> Java-J2EE >> Core-Java
 
 


 

 
 Core Java interview questions  Core Java Interview Questions
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Question 
what is the use of private constructor in core java?
 Question Submitted By :: Rams
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what is the use of private constructor in core java?
Answer
# 1		 
Whenever we r using singleton class then we use constructor 
as private.
 
0
Rajib
 
  Re: what is the use of private constructor in core java?
Answer
# 2		 
Private constructor can be used if we do not want any other 
class to instantiate the class. This concept is generally 
used in Singleton Design Pattern. The instantiation of such 
classes is done from a static public method.
 
0
Rakesh
 
 
 
 
 
 
Other Core Java Interview Questions
 
  Question Asked @ Answers
 
what is difference between String buffer and String builder?  2
methods in Applet?  1
what is connection pooling with example? AMDOC1
What is the default initialized value of a boolean type variable?  3
write the hierarchy of component class?  1
if two references are having same hash codes,is that means those are refering to same object? CTS4
What is clipping?  2
What are the advantages of the model over the event- inheritance model?  1
How do u provide security in java  1
what is inner class? HCL4
what is stringtolennizer with example? Symphony1
What is persistence ?  2
Functionality of JVM?  3
Why Wait and notify are kept in Object class although they are used only with Thread Class  2
What is the return type of read()?  1
Name the method that is used to set a TextComponent to the read-only state?  1
what is session facade ?  1
What is the need of "creating and throwing an UserdefinedException" when the "Exception" class is already available?  2
I/O blocking means?  1
which methods consisting of the serilizable interface?  3
 
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