What are loops in java? What are three types of loops?
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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 are the elements of a gridbaglayout organized in java programming?
Is java free for commercial?
Can you instantiate the math class?
Explain what are final variable in java?
What are the topics in core java?
What is the method in java?
Does java map allow duplicates?
if i have one string class then how can you achive this class functionality of this class?
How does callback work in java?
What is an iterator interface in java programming?
What is a static class in java?