What is user defined exception in Java?
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Why we use static and synchronized in method for single thread model example: public static synchronized add(){}
does java support pointers?
Can we instantiate Interfaces?
After compilation of java program we'll get .class code. If it's generated in OS Windows XP will it work on OS Linux? If yes why? If no why?
wat is class level lock and object level lock
What is the destroy method?
Can we have a abstract class withought any method? What is a purspose of this?
Explain restrictions on using enum?
how to minimize the functionality to will not force garbage collector?
Can a constructor call another constructor?
List the three steps for creating an object for a class?
why the constructor should be used in class,if there is no constructor what will happen?