Explain the difference between jvm and jre?
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Why charat is used in java?
Can you declare a private method as static?
What error occurs if a try-catch-finally statement sequence does not have a catch clause?
I want my class to be developed in such a way that no other class (even derived class) can create its objects. Define how can I do so?
Which class is extended by all other classes?
how to create multithreaded program? Explain different ways of using thread? When a thread is created and started, what is its initial state? Or extending thread class or implementing runnable interface. Which is better? : Java thread
What are the super most classes for all the streams?
Explain the term serialization?
What is the use of optional ?
How do you detect memory leaks?
What is the middleware?
Define the term string pool?