What is java string pool?
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how system.out.println() works?
Which is easier netbeans or eclipse?
What are concepts of OOPS and how are they implemented in Java?
What is static and final keyword in java?
How do you override a private method 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??
how u do unit testing?
What is the intersection and union methods?
What is the static field modifier?
When can you say a graph to be a tree?
Is special character in java?
What is stringwriter?