Answer Posted / amit patel

Abstract class is used to implement common behavior which is
required by all subclasses but have some behavior which is
specific to subclass.

E.g., you want to implement a DocumentViewer App. Basic
operations are like open, view and close. open and close
requires no specific implementation while view require
specific implementation. Make DocumentViewer abstract,
implement open, close and make view as abstract. Now view is
responsibility of subclass. Like PDFViewer will have own
implementation for view()

What is the default size of load factor in hashing based collection?

1107

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1068

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This abstract class is correct ? abstract class A { public abstract void Disp(); public abstract void B() { } public absract virtual C() { } }

1046

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What are the advantages and disadvantages of object cloning?

1166

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1015

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1201

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1842

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1339

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Describe string intern() methodology

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Garbage collection in java?

1068

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What loop means?

1005

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1077

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In which language java is written?

1033

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Explain a situation where finally block will not be executed?

1096

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What is prime number in java?

1045

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