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Q:

What is meant by heap?

A) Used for fast reterival of elements B) Used for organising the elements
C) Both a & b D) None of the mentioned
 
Answer & Explanation Answer: C) Both a & b

Explanation:

A heap is a way to organize the elements of a range that allows for fast retrieval of the element.

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Filed Under: C++

Q:

What does the sequence adaptor provide?

A) Insertion B) Deletion
C) Interface to sequence container D) None of thse
 
Answer & Explanation Answer: C) Interface to sequence container

Explanation:
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Filed Under: C++

Q:

To which type of class, We can apply RTTI?

A) Encapsulation B) Polymorphic
C) Derived D) None of these
 
Answer & Explanation Answer: B) Polymorphic

Explanation:

RTTI is available only for classes which are polymorphic, which means they have at least one virtual method.

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Filed Under: C++

Q:

What will happen when introduce the interface of classes in a run-time polymorphic hierarchy?

A) Separation of interface from implementation B) Merging of interface from implementation
C) Separation of interface from debugging D) None of the mentioned
 
Answer & Explanation Answer: A) Separation of interface from implementation

Explanation:
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Filed Under: C++

Q:

What will happen when an exception is not processed?

A) It will eat up lot of memory and program size B) Terminate the program
C) Crash the compiler D) None of the mentioned
 
Answer & Explanation Answer: A) It will eat up lot of memory and program size

Explanation:

As in the case of not using an exception, it will remain useless in the program and increase the code complexity.

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Filed Under: C++

Q:

Swap two variables without using third variable.

Answer

#include<stdio.h>
int main(){
    int a=5,b=10;
    a=b+a;
    b=a-b;
    a=a-b;
    printf("a= %d  b=  %d",a,b);
}

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Subject: Programming

Q:

What are wrapped classes ?

Answer

Wrapped classes are classes that allow primitive types to be accessed as objects.

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Subject: Java

Q:

What is encapsulation?

Answer

Encapsulation describes the ability of an object to hide its data and methods from the rest of the world 

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Subject: Java