Wednesday, 28 August 2013

Singleton Design Pattern

A class which allow users to create object only once not more than 1 time is known as Singleton design pattern.
we can make only one object of the class.

Example-


in the SIB we create the object because SIB executes only once throughout the execution of program.
P class contains the private constructor so except P no other class create the object of P.
for object creation we getObject();
when we called getobject method ,SIB executes one time which creates the object.....
so by using the SIB we implement the singleton design pattern.....

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