where exactly collections are usefull in realtime

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What is difference between path and classpath variables?

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Why is serialization required?

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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 does %4d mean in java?

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Difference between a process and a program?

0 Answers   Infosys,

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Can a boolean be null java?

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What is collection api?

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Garbage collection in java?

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Ducking is automatic in checked exception?True or false

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How to convert string to byte array and vice versa?

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What is externalizable interface?

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