What is the purpose of file class?
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What is the % operator?
Can we create object of static class?
What are filterstreams?
How do you include a string in java?
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 happens if a try-catch-finally statement does not have a catch clause to handle an exception that is thrown within the body of the try statement?
Can one thread block the other thread?
Why do we need autoboxing in java?
which pattern is default in scanner package?
What is not object oriented programming?
What is queue in java?
Difference between vector and arraylist.