Latest Answer: Local variables (including formal parameters) are visible only in the method, constructor, or block in which they are declared. Access modifiers (private, public, ...) can not be used with local variables. All local variables are effectively private ...
Can we catch an Error occurred in a class by extending that class with Throwable Since, Exception and error is the sub class of throwable.If yes/no- why?
Latest Answer: we can handle the exception but we cabt handle error super call of both is throwable ...
Latest Answer: A JVM has a string pool where it keeps at most one object of any String. String literals always refer to an object in the string pool. String objects created with the new operator do not refer to objects in the string pool.Afetr using the string object ...
Latest Answer: Declare class as final ...
Latest Answer: Java always makes a copy of arguments & pass the copy.The called method has a local copy of data.If the the method changes the data it changes the copy, So original value is not changed. ...
What is the difference between Transient and Volatile. Does volatile variable is serialized and synchronised.
Latest Answer: Volatile:Threads dont cache method copy of Volatile instance variables. Each time when the var is used the thread gets latest copy.Transient:instance var not serialized ever. After deserialization its value is null(object) or zero(primitive type). ...
Why wait and notify method in Object class, why these are not in Thread Class.
Latest Answer: beacuse these methods are native ie implementd in some other language ...
Latest Answer: according to sun system there is no corejava and advanced java.only j2se,j2eeNo advanced java is there as per sun micro... Fucking Training centers daivide j2ee into two patrs. Dont tell in interview i Know Advanced Java. ...
What are the difference between Legacy classes and Collection other than Synchronized?
Latest Answer: legacy class are syncronized by defult where as collection's member are not syncronized by deflt ...
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