What does the exclamation mark mean in java?
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What is the difference between abstraction and encapsulation?
Why is it called boolean?
What is difference between array and vector?
java can provide security ,how can provide?
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What is the purpose of finalization in java programming?
What is the difference between multiple processes and multiple threads?
What is mutable object and immutable object?
Explain the difference between abstraction and encapsulation.
Difference between arraylist and vector.
what is default layout of JFrame class?
What means public static?
is this possible to create an array of 0 length? if so how? if not so why? coz we have an array in main() likw this "static void main(String [] s) then what it signifies?