What is comparator in java?
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What is difference between iterator and enumeration in java?
Explain 5 features introduced in jdk 1.7?
What is string data type?
Difference between Web-based applications,Client- Server applications and Distributed applications?
How do you do math powers in java?
What classes can be used to store arbitrary number of objects ?
What is a subsequence of a string?
What is the difference between compiler and jvm?
whats is the use of final,in which situation final can be used in the application?
What is the difference between the reader/writer class hierarchy and the inputstream/outputstream class hierarchy in java programming?
Can we have more than one package statement in the source file?
Is singleton class thread safe?