What is volatile keyword in java
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does core java and j2se both are same?
What does those terms actually mean included in the j.d.k i.6?
What is the difference between a constructor and a method?
Can u write constructor in abstract.If yes den when it will be invoked.
what is polymorhism what is inheritance? what is Abstract n Interface? what if two interfaces have same method and a concrete class is implementing both the interfaces. Will there be a compilation error? What are mutable and immutable classes? How can u make a class mutable? when will u use dem ...explain with example? what is overriding and overloading? what is garbage collection? what is Thread? how do dey communicate? what are the different ways of implementing ? have u used any messaging technologies? what is synchronization? what are some additions in java 1.5? what are generics? whst is advanced for loop? what is finally block? can u have a try in finally? yes!! can u have a finally in finally? how do you write junits? when is a object eligible for garbage collection?explain? a = null and b has ref to a will b be eligible to be garbage collected? sql questions like diff joins? how do dey work? exception handling? what is marker interface? what is the need??
What type of language is java?
How do you override a method?
Explain about arraylist?
Can an unreferenced object be referenced again?
Why do we declare a class static?
What is oop principle in java?
Why const and goto are reserved keyword in java?