What is thread safe java?
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What are the advantages of packages in java?
What are format specifiers in java?
What is a method in coding?
Difference between Reader/Writer and InputStream/Output Stream?
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Why do we need autoboxing in java?
What's the difference between comparison done by equals method and == operator?
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 is connection pooling with example?
Explain the importance of finalize() method.
How do listeners work?
Superclass of exception
How do I get the | symbol on my keyboard?