<Li> The class instantiations are specified at run - time . </Li> <Li> There must be a single instance and client can access this instance at all times . </Li> <Li> Instance should be extensible without being modified . </Li> <P> Below is a simple class diagram that most creational patterns have in common . Note that different creational patterns require additional and different participated classes . </P>

What are the different creational patterns in oo design