Why is java so popular?

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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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what are Hostile Applets?

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Can Anybody tell the diff b/w jdk1.6 and latest version.

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What are local variables?

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Why string is a class?

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Why is multiple inheritance not supported in java?

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Explain different forms of polymorphism?

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Have you used any version control ? if so explain about it?

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Why can we not override static method?

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

1 Answers   Huawei,

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What are the advantages of defining packages in java?

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