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??
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What is immutable class? how to make a Class explicitly "Immutable"?Wap to make a class explicitly immutable.
What is audio clip interface? Name few methods of it ?
Why is java not 100% pure oops?
What is the static keyword?
What access modifiers can be used for class ?
What is a prefix function.write down a code to compute prefix function.
What is the difference between stored procedure & function?
What does this () mean in constructor chaining concept?
What is a generic code?
Which package has light weight components in java programming?
what is custom tags with example?
What are the pillars of java?