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Home Questions & Answer Technology Questions & Answers C++ programming Questions & Answers

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

Which of the following cannot be inherited from the base class
AConstructor
BFriend
CBoth A and B cannot be inherited

DBoth A and B can be inherited

expression x.y represents as
Amember x of object y
Bmember y of object x

Cmember y of object pointed by x
Dall of above

What is getline() in c++
Agetline() extract the delimeter newline character from the input stream

Bgetline() does not extract the delimeter newline character from the input stream
CNone of above

Difference between static and dynamic memory allocation is
AIn static memory allocation memory to be allocated in preknown

BIn dynamic memory allocation memory to be allocated in preknown
CThere is no differnece
DNot exact difference is mentioned

Which is boolean operator for logical and
A&
B||
C&|
D&&

Which is not a correct variable type
Afloat
Bint
Cdouble
Dreal

Meaning of deed copy is
AA deep copy creates a copy of the dynamically allocated objects too

BA deep copy just copies the values of the data as they are
CA deep copy creates a copy of the statically allocated objects too
DBoth A and C

Declaring pointer more than one can cause
ATrap

Babort a program
Cerror
Dnone of above

Every class has atleast one construtor
ATrue

BFalse

Can we overload constructors in C++
AYes

BNo

How to define a destructor
AX~() {}
BX() {}~
CX() ~{}
D~X() {}

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

BFalse
CAnswer

Constructor is
AA class automatically called whenever a new object of this class is created
BA class automatically called whenever a new object of this class is destroyed
CA function automatically called whenever a new object of this class is created

DA function automatically called whenever a new object of this class is destroyed

Which operator is used to define a member of a class from outside the class definition
A->
B::

C.
D>>

All members of class have which access to its members
Aprivate

Bpublic
Cprotected
Ddepends

1
2

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