Why do we create threads in java?
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Explain OOPs concept.
What is array initialization in java?
To obtain design information about an object, which class in used?
If you are given the name of the function at run time how will you invoke the function?
What is user defined exception in Java?
What is the internal implementation of set in java?
What is meant by method?
Name few "optional" classes introduced with java 8 ?
What are E and PI?
Explain the differences between abstraction and encapsulation?
What’s the difference between constructors and other methods?
Define inheritance with reference to java.