What is the importance of main method in Java?
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Is java a pure object oriented language?
Can a constructor call another constructor?
Where is the find and replace?
Which is better singleton or static class?
How many bits is a string?
Are arrays immutable in java?
What is the diffrence between inner class and nested class?
When is update method called?
What is the life cycle of Servlet?
Is it possible to compare various strings with the help of == operator? What are the risks involved?
What is a Null object?
Why we override equals() method?