What do you understand by abstract classes?
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What is the return type of readLine() when end of a file is reached?
What is meant by interface?
Default layout of Dialog object?
Which class should you use to obtain design information about an object in java programming?
What environment variables do I need to set on my machine in order to be able to run java programs?
Explain thread in java?
Why there are some null interface in JAVA? What does it mean? Give some null interface in JAVA?
What are static blocks and static initalizers in java ?
Is there any case when finally will not be executed?
What is the class in java?
Why only one Class is public in one file? Explain in details. Thanks in Advance.
Explain purpose of sleep() method in java?