Consider the below code: publio alass MyDemoclass private statio volatile MyDemoclass myinstance null publio static MyDemoClass instance $()$ if $($myInstance null$)($ synohroni zed $($MyDemoClass$.$olass$)$ if $($myInstance null$)$ myInstance $=$new MyDemoClass $()$ return myInstance private MyDemoclass$()11$ public void displayMessage $()12$ system,out.printin $("$Welcome to Java WorldI"$)13$ The below code is an example of: Double$-$checked locking One of the ways to create thread safe Singleton class. Example of Singleton Pattern $15$ Returns a half$-$initialized Singleton Pattern object Select the statements that are correct