What is a classloader in java?


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More Core Java Interview Questions

In multi-threading how can we ensure that a resource isn't used by multiple threads simultaneously?

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Matrix multiplication only using OOP concepts .

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Is math an abstract class in java?

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Can an interface implement another interface?

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How can you generate random numbers in java?

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Can arraylist hold different types java?

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interface X{ void m1(); void m2(); } class Child2 extends Object implements X { public void m1(){ System.out.println("Child2 M1"); } public void m2(){ System.out.println("Child2 M2"); } } public class ParentChildInfterfaceDemo { public static void main(String[] args){ X x = new Child2(); X x1 = new Child2(); x.m1(); x.m2(); x.equals(x1); } } Will the above code work? If yes? Can you please explain why the code x.equals(x1) will work as the equals method is called on interface reference vaiable?

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while creating thread why we extend thread class

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what is polymorphism?

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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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What do you mean by hashing?

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What is meant by interface?

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