C++ programming Questions & Answers (Compiled from UPSC, SSC ,PSC ,IBPS previous question papers)

Which of the following cannot be inherited from the base class
Constructor
Friend
Both A and B cannot be inherited
Both A and B can be inherited

expression x.y represents as
member x of object y
member y of object x
member y of object pointed by x
all of above

What is getline() in c++
getline() extract the delimeter newline character from the input stream
getline() does not extract the delimeter newline character from the input stream
None of above

Difference between static and dynamic memory allocation is
In static memory allocation memory to be allocated in preknown
In dynamic memory allocation memory to be allocated in preknown
There is no differnece
Not exact difference is mentioned

Which is boolean operator for logical and
&
||
&|
&&

Meaning of deed copy is
A deep copy creates a copy of the dynamically allocated objects too
A deep copy just copies the values of the data as they are
A deep copy creates a copy of the statically allocated objects too
Both A and C

Declaring pointer more than one can cause
Trap
abort a program
error
none of above

How to define a destructor
X~() {}
X() {}~
X() ~{}
~X() {}

If no constructor is there, then compiler assumes the class to have a default constructor with no arguments
True
False
Answer

Constructor is
A class automatically called whenever a new object of this class is created
A class automatically called whenever a new object of this class is destroyed
A function automatically called whenever a new object of this class is created
A function automatically called whenever a new object of this class is destroyed

All members of class have which access to its members
private
public
protected
depends

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C++ programming Question Answers, PSC, UPSC, IBPS, SSC Previous Papers