Explain about oops concepts.
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what is the logic inside any default constuctor?
Which class is the superclass for all the classes?
How hashmap increases its size in java?
What is the difference between iterator and enumeration ?
What are teh sub-classes of a component class?
What is space character in java?
How do you read a char in java?
What is a newline character in java?
What is a file pointer?
What is a classloader in java?
Need to use public,static keywords in main function?
What is difference between length and length() method in java ?