what is private constructor?what are the uses of writing
private constructor in our program?
Answer Posted / ajay parashar
Private constructor is simple constructor that has private
access modifier.
Private constructors are used for two purposes.
1)to prevent creation of objects outside the class when
there are no instance variables in the class and the
methods of class takes some input parameters and does
processing and returns the result without getting or
setting instance variables like in math class of .NET.
2)When your application requires a class that has only one
instance and you need to provide a global point to access
that instance like in the case of singleton.
Is This Answer Correct ? | 17 Yes | 7 No |
Post New Answer View All Answers
What does method mean?
What is a variable and constant?
What is the hashcode () and equals () used for?
What is use of functional interface in java 8? Explain
What is module in project?
What is stringwriter?
Java is pass by value or pass by reference? Explain
What is fundamental datatype?
Explain all java features with real time examples
5 Coding best practices you learned in java?
What are methods?
Explain the features of interfaces in java?
Why to use nested classes in java? (Or) what is the purpose of nested class in java?
Explain super keyword in java.
How many types of methods are there?