we know that every java prog must follows OOPS Principles. Anybody can answer, HOW THE FOLLOWING PROGRAM FOLLOWS OOPS CONCEPTS i.e, Inheritance,Polymarphism,Encapsulation? class a{ public static void main(String args[]){ System.out.println("Hello World"); } }

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how are methods defined?

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What is json parser in java?

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What is collection class in java? List down its methods and interfaces.

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What is wrapper class example?

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What is the difference between compile-time polymorphism and runtime polymorphism?

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Does it matter in what order catch statements for filenotfoundexception and ioexception are written?

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What are user defined exceptions?

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When is update method called?

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What is hash code collision?

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program to validate the IP address? Validity range should be 0 to 255

1 Answers   Huawei,

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Explain which of the following methods releases the lock when yield(), join(),sleep(),wait(),notify(), notifyall() methods are executed?

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