What is the difference between compile-time polymorphism and runtime polymorphism?
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I don’t want my class to be inherited by any other class. What should I do?
What is meant by JVM ?
What happens when main () method is declared as private?
Is arraylist zero based?
How do I print a “?
how to handle a singleton service locator. when multiple threads are trying to get the singleton object in same time
What is math in java?
What do you understand by synchronization?
What is an abstract class?
How many arguments can be passed to main ()?
Who found java?
I have one Shopping cart application, i that i have selected some items, while clicking submit button by mistake i have clicked twice or trice, that time items are selected twice or trice. Actually i want only one copy of items but its selected twice or trice. So how can we avoid this problem?