Answer Posted / varun sir

a virtual function is used to avoid duplicacy in derived
classes. suppose that there is a base class which has two
properties a and b. now suppose that two derived classes
named 'der1' and 'der2' are deriving from that base class,
then both properties a and b of base class will be
inherited to both of the derived classes. now if a new
class is derived from 'der1' and 'der2' then both of the
properties a and b of 'der1' and 'der2' will also be
inherited into newly derived class. this will cause
duplicacy in newly obtained derived class. so in order to
avoid this duplicacy , we use virtual functions.

What is a superclass in oop?

1219

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How do you answer polymorphism?

1108

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What does oop mean in snapchat?

1298

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Why is encapsulation used?

1054

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write a program to enter a string like"sunil is a good boy and seeking for a job" not more than 10 characters including space in one line,rest characters should b in other line.if the next line starts from in between the previous word,then print whole word to next line.

2297

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Is this job good for future? can do this job post grduate student?

2220

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Can you explain polymorphism?

1155

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to find out the minimum of two integer number of two different classes using friend function

2184

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what is difference between class template and template class?

2713

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What is an example of genetic polymorphism?

1242

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What is meant by multiple inheritance?

1333

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write a code for this. serial_number contained in the header of the file will be read , if this serial number is less than a previous serial number within a successfully processed file, or is the same as another serial number within a successfully processed file, or if the field contains anything other than 7 digits, then the file must error with the reason ‘Invalid SERIAL_NUMBER’.

2343

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What is for loop and its syntax?

1133

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What is a class in oop?

1195

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What are benefits of oop?

1196

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