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C++ Objective Questions - Page-11

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Question: 201

#include <iostream>
using namespace std;
class TestingClass
{
public:
TestingClass(int x)
{
 cout << x << endl; 
}

TestingClass()
{
 cout <<"Hello!"<< endl; 
}

};
int main()
{
 TestingClass test(77);
 return 0;
}

(A) The programs runs with no output
(B) 77
(C) Hello!
(D) Hello!

Compiler
Level: Practitioner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 202

A public member function may be called from a statement outside the class, is this correct?

(A) True
(B) False

Compiler
Level: Beginner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 203

Which member function of a class is called automatically when any object is created of that class?

(A) static function
(B) utility function
(C) constructor
(D) destructor

Compiler
Level: Beginner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 204

A class is a data type that is defined by the coder?

(A) True
(B) False

Compiler
Level: Beginner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 205

The name of constructor is same name as?

(A) first variable name
(B) first function
(C) class name
(D) object name

Compiler
Level: Beginner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 206

A class can have only one constructor

(A) True
(B) False

Compiler
Level: Practitioner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 207

The key words private and public are access specifiers

(A) True
(B) False

Compiler
Level: Beginner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 208

Destructor functions are often used to free memory that was allocated by the object

(A) TRUE
(B) FALSE

Compiler
Level: Beginner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 209

The UML provides a set of standard diagrams for graphically depicting object-oriented systems

(A) True
(B) False

Compiler
Level: Beginner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 210

Which directive is used to create an “include guard”,
which allows a program to be conditionally compiled.
This prevents a header file from being included more than once

(A) #include
(B) #guard
(C) #ifndef
(D) endif

Compiler
Level: Practitioner Category: other
[Posted by: Andrew | New Jersey]

Question: 211

An overloaded operator works with user defined data types

(A) True
(B) False

Compiler
Level: Practitioner Category: operators
[Posted by: Andrew | New Jersey]

Question: 212

When you redefine the way a standard operator works when it is used with class objects, you have done?

(A) re-assigned
(B) reformatted
(C) constructed
(D) overloaded

Compiler
Level: Practitioner Category: operators
[Posted by: Andrew | New Jersey]

Question: 213

If you overload the prefix ++ operator, the postfix ++ operator is automatically overloaded

(A) True
(B) False

Compiler
Level: Practitioner Category: operators
[Posted by: Andrew | New Jersey]

Question: 214

It is possible to declare an entire class as a friend of another class

(A) True
(B) False

Compiler
Level: Practitioner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 215

If a member variable is declared as one of the below, all objects of that class have access to that variable.

(A) static
(B) auto
(C) exterb
(D) register

Compiler
Level: Practitioner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 216

What type of function is not a member of a class, but has access to the private members of the class.

(A) Static function
(B) constructor
(C) destructor
(D) friend

Compiler
Level: Practitioner Category: function
[Posted by: Andrew | New Jersey]

Question: 217

When is the external name of the file used in the program

(A) Any time you read or write to the file
(B) Never
(C) Only when reading from the file
(D) When opening the file stream

Compiler
Level: Practitioner Category: filehandling
[Posted by: Andrew | New Jersey]

Question: 218

In C++, if you overload the < operator, you must also overload TRUE FALSE the > operator

(A) True
(B) False

Compiler
Level: Practitioner Category: operators
[Posted by: Andrew | New Jersey]

Question: 219

By default, when an object is assigned to another,
each member of one object is copied to its counterpart in the other object.

(A) True
(B) False

Compiler
Level: Practitioner Category: classesAndobjects
[Posted by: Andrew | New Jersey]

Question: 220

this pointer is a special built-in pointer that is automatically
passed as a hidden argument to all non-static member functions

(A) True
(B) False

Compiler
Level: Practitioner Category: pointers
[Posted by: Andrew | New Jersey]

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