The compiler identifies a virtual function to be pure

For a method to be an interface between the outside world and a class, it must be declared

C++ encourages structuring a software as a collection of components that are

The fields in a structure and class of a C program and C++ program respectively are by default

Overloading is otherwise called as

A constructor is called whenever

class Dog : public X, public Y is an example of

When a class serves as base class for many derived classes, the situation is called

The use of the break statement in a switch statement is

Data members : name (char type), marks 1, marks 2, marks 3 (integer type)

Functions : calc_total(); disp();

The program asks the user to enter name and marks. Then calc_total() calculates the total marks and disp() displays name and total marks on screen in different lines.

Overloading

Overriding

C++ STL

Constructor

Which of the following types of class allows only one object of it to be created?

Which of the following statements is correct?

Which of the following statements is correct?

Which of the following approaches is adapted by C++?

Which of the following is not type of class?

What is default access specifier for data members or member functions declared within a class without any specifier in C++?

Which is known as generic class?

What is scope of a class nested inside another class?

Which syntax for class definition is wrong?

Which among the following best describes the inheritance?

Data abstraction

Overriding

Encapsulation

Virtual function

Constructor and destructor

To prevent any method from overriding, we declare the method as

Which of the following types of class allows only one object of it to be created?

Multiple inheritance means

When the compiler cannot differentiate between two overloaded constructors, they are called

In C++, dynamic memory allocation is accomplished with the operator

If we create a file by 'ifstream', then the default mode of the file is

To perform file I/O operations, we must use _______ header file.

Which keyword is used to check exception in the block of code?

What will happen when the exception is not caught in the program?

Which of the following gives the memory address of integer variable a?

Explain adaptor class or wrapper classes with example.

Explain dangling pointer with the help of an example.

What is a friend function and what are its advantages?

What are the guidelines that should be followed while using friend function?

Describe scope and life of a variable.

Describe 'this' pointer with its applications.

What is a constructor? Describe the types of constructor each with an example.

Explain pointer-to-pointer with an example.

The address of a variable temp of type float is

The process of building new classes from existing one is called ________.

An array element is accessed using

If there is a pointer p to object of a base class and it contains the address of an object of a derived class and both classes contain a virtual member function abc(), then the statement p->abc(); will cause the version of abc() in the ________ class to be executed.

Overloading a postfix increment operator by means of a member function takes

What will be the output of the following program?

#include<iostream.h>
void main() {
    float x=5, y=2; int result;
    result=x%y; cout<<result;
}

Member functions, when defined within the class specification:

An exception is caused by

Which of the following expressions is illegal?

What is the output of given code fragment?

int f=1, i=2; while(++i<5)
f*=i;
count<<f;

Explain the importance of using friend function in operator overloading with the help of an example.

What is a default argument and constant argument? Explain each with an example.

Explain a pure virtual function with an example.

What is function template? Give an example of it. Also differentiate between template class and class template.

How does inheritance influences the working of constructor and destructor? Give the following set of definitions

class x { };
class y: public x { };
class z: public y { };
z obj;

Write a program to read three numbers $x, y$ and $z$ and evaluate $R$ given by $R = z/(x-y)$. Use exception handling to throw an exception in case division by zero is attempted.

Explain the use of this pointer with an example. Explain what happens when a pointer is deleted twice.

What is downcast? Explain why and when do we use protected instead or private.

What is a friend function? Explain the advantages of using friend classes.

What is C-string? Give an example in support of your answer. Also explain the problem associated with C-string.

What is a container class? What are the types of container classes?

Create an array that can hold ten integers, and get input form user. Display those values on the screen, and then prompt the user for an integer. Search though the array, and count the number of times the item is found.

What is a variable? Write rules for defining a variable in C++. Also explain different types of storage classes in C++.

What is encapsulation? What are its advantages? How can encapsulation are enforced in C++?

Pointer to constant vs pointer constant

Inspector vs Mutator

Vectors vs Dequeues

Realloc() vs free()

Overloading

Overriding

C++ STL

Constructor

Destructor

Inheritance

Encapsulation

Templates

Protected variable

Private function

What is a friend function and what are its advantages?

What are the guidelines that should be followed while using friend function?

What is virtual function? Explain with an example.

Explain the abstract class with an example.

What is the difference between compile time and run time errors? What is the use of stack unwinding in exception handling?

Discuss void, this and const pointers.

What is the output of the following code?

char symbol[3]={'a','b','c'};
for (int index=0; index<3; index++)
    cout << symbol[index];

(i) a b c (ii) "abc" (iii) abc (iv) 'abc'

If a class C is derived from class B, which is derived from class A, all through public inheritance, then a class C member function can access (i) protected and public data only in C and B (ii) protected and public data only in C (iii) private data in A and B (iv) protected data in A and B

In C++, the range of signed integer type variable is (i) 0 to $2^{16}$ (ii) $-2^{15}$ to $2^{15} - 1$ (iii) $-2^7$ to $2^7 - 1$ (iv) 0 to $2^8$

The function whose prototype is void getData(Item *thing); receives (i) a pointer to a structure (ii) a reference to a structure (iii) a copy of a structure (iv) four bytes

Format flags may be combined using the (i) bitwise OR operator (|) (ii) logical OR operator (||) (iii) bitwise AND operator (&) (iv) logical AND operator (&&)

Which of the following types of class allows only one object of it to be created? (i) Virtual class (ii) Abstract class (iii) Singleton class (iv) Friend class

cout is a/an (i) operator (ii) function (iii) object (iv) macro

The size of object is equal to (i) total size of member data variables (ii) total size of member function (iii) Both (i) and (ii) (iv) None of the above

If A and B are Boolean variables, then the expression (!A) || (!B) is equivalent to which of the following conditions? (i) !(A && B) (ii) !(A || B) (iii) !(A) && !(B) (iv) True

What will be stored in n by the following statements?

int n;
n = 17 + 10 / 7;

(i) 18 (ii) 3 (iii) 3.857.. (iv) 18.428..

Write a program that defines a shape class with a constructor that gives value to width and height. Then define two sub-classes triangle and rectangle, that calculate the area of the shape area(). In the main, define two variables a triangle and a rectangle and then call the area() function in this two variables.

What are pure virtual functions? Write the syntax.

What is inline function? What are its advantages and disadvantages?

Draw the exception handling model.

What is multilevel inheritance? How is it different from multiple inheritance?

How can a common friend function to two different classes be declared?

What are the basic differences between manipulators and IOS member functions in implementation? Give examples.

What is object-oriented programming? How is it different from procedure-oriented programming?

Explain the following functions with examples for manipulating file pointers: seekg(), seekp(), tellg(), tellp()

What is the difference between passing a parameter by reference and constant reference? Explain with an example.

Write a program that asks the user for an integer number and find the sum of all natural numbers up to that number.

Class Y has been derived from class X. The class Y does not contain any data members of its own. Does the class Y require constructor? State your answer with Yes or No and why.

What is operator overloading? List out the operators that cannot be overloaded.

What are generic classes? Why are they useful? Explain with an example how these are implemented in C++.

Private and public inheritances

Instantiation and specialization of a template class

Static and dynamic bindings

A class and a struct

Find out the error in following block of code:

if (x = 100)
    cout << "x is 100";

(i) 100 should be enclosed in quotations (ii) There is no semicolon at end of first line (iii) Equals to operator mistake (iv) Variable x should not be inside quotation

Which of the following is not a jump statement in C++? (i) Break (ii) Goto (iii) Exit (iv) Switch

Consider the following statements:

int *p;
int i, k;
i = 142;
k = i;
p = &i;

Which of the following statements changes the value of i to 143? (i) k = 143; (ii) *k = 143; (iii) p = 143; (iv) *p = 143;

Which of the following is false? (i) Variable has scope and visibility (ii) Variables having scope may not be visible (iii) Variables having visibility may not have scope (iv) None of the above

A class cannot be: (i) virtual (ii) generic (iii) inline (iv) friend

Which of the following is/are false? (i) Inheritance is deriving new class from existing class (ii) In an inheritance, all data and function members of base class are derived by derived class (iii) We can specify which data and function members of base class will be inherited by derived class (iv) We can add new functions to derived class without recompiling the base class

What is true about inline functions? (i) It's a compulsion on the compiler to make function inline (ii) It's a request to the compiler to make the function inline (iii) It's the indication to the compiler that the function is recursive (iv) It's the indication to the compiler that the function is member function

The statement char s = 'A' will internally assign value to s is: (i) 0 (ii) 90 (iii) 65 (iv) 127

If p is a pointer, then p++ means: (i) increment the value of p (ii) increment the pointer p (iii) increment the address of the variable to which p is pointing (iv) increment the value of the variable to which p is pointing

Which of the following is not the member of class? (i) Static function (ii) Friend function (iii) Constant function (iv) Virtual function

Explain template and its type with an example.

Write a program using function template to find the cube of a given integer, float and double number.

What is the output of the following code?

#include <iostream.h>
class A {
public:
    void f() {
        std::cout << "A::f" << std::endl;
    }
    virtual void g() {
        std::cout << "A::g" << std::endl;
    }
};

class B : public A {
public:
    void f() {
        std::cout << "B::f" << std::endl;
    }
    virtual void g() {
        std::cout << "B::g" << std::endl;
    }
};

int main(int argc, char** argv) {
    A a; B b;
    A* aPtr = &a;
    A* bPtr = &b;
    aPtr->f();
    aPtr->g();
    bPtr->f();
    bPtr->g();
    return 0;
}

Is there anything to be noticed? Explain it.

What is virtual destructor? How virtual functions call up is maintained?

Conversion from class to basic type

Function prototyping

Overload resolution

Write the expressions to represent the following: (i) p is a function whose argument is a pointer to an array of characters and which returns a pointer to an integer. (ii) p is a function whose argument is a pointer to character and which returns a pointer to an array of ten integers.

What is encapsulation? What are its advantages? How can encapsulation are enforced in C++?

a pointer and a reference;

new and malloc;

object and class.

In which situation catch blocks are used? Also give types of catch handler in C++.

Write a program to show the concept of rethrowing an exception.

Explain nested switch () case statement with an example and also show its output.

What are iteration statements? Write a program in C++ for iteration statements (any one) and also show its output.

What is function overloading? How it differs from operator overloading?

What are the differences between a C++ struct and C++ class?

What do you understand by object-oriented programming? How is it different from procedural programming?

What are keywords and identifiers? Explain with examples.

Distinguish between (i) object and classes, and (ii) inheritance and polymorphism.

Why do we need the preprocessor directive #include<iostream>?

What are objects? How are they created?

What is type conversion? Give example.

Can we have more than one constructor in a class? If yes, explain the need for such a situation.

What are enumeration types? Explain with examples.

What are advantages of function prototypes in C++?

When will you make a function inline? Why?

What is function overloading? Illustrate function overloading through addition function which adds two integer numbers and two float numbers.

Explain break statement and continue statement with example.

What is a constructor? Explain different types of constructor.

What are benefits of using functions? Write a C++ function to swap the contents of two variables $a$ and $b$, using different parameter passing mechanisms.

What is virtual function? Explain with suitable example.

With illustration, explain function overloading.

What are different types of polymorphism achieved in OOP? What are pure virtual functions?

What is operator overloading? Give an example of operator overloading, using friend class.

Explain how base class member functions can be involved in a derived class if the derived class also has a member function with the same name.

What is a Destructor? Write a class, using C++ without destructor and explain.

What are implicit pointer and static class member? Explain with examples.

What is inheritance? Bring out the concept of various types of inheritance and importance of derived class with examples.

What is Exceptional Handling? How are exceptions handled in C++?

What are Class Templates? Explain with examples.

What do you understand by void pointers? Write a program to show the use of void pointers.

Explain the uses of try, throw and catch keywords, used for exceptional handling.

Which of the following statements is correct? (i) A reference is stored on heap (ii) A reference is stored on stack (iii) A reference is stored in a queue (iv) A reference is stored in a binary tree

How many parameters does a Default Constructor accept? (i) 0 (ii) 1 (iii) 2 (iv) 3

Destructor has the same name as the constructor and it is preceded by (i) ~ (ii) ! (iii) & (iv) ?

Which of the following types of class allows only one object of it to be created? (i) Virtual class (ii) Abstract class (iii) Singleton class (iv) Friend class

Which of the following statements is correct? (i) Two functions having same number of argument, order and type of argument can be overloaded if both functions do not have any default argument (ii) Overloaded function must have default arguments (iii) Overloaded function must have default arguments starting from the left of argument list (iv) A function can be overloaded more than once

Which of the following statements is incorrect? (i) Default arguments can be provided for pointers to functions (ii) A function can have all its arguments as default (iii) Default argument cannot be provided for pointers to functions (iv) A default argument cannot be redefined in later declaration

Which of the following is not a type of constructor? (i) Copy constructor (ii) Friend constructor (iii) Default constructor (iv) Parameterized constructor

Which of the following access specifies is used in a class definition by default? (i) Protected (ii) Public (iii) Private (iv) Friend

Which of the following statements is correct with respect to the use of friend keyword inside a class? (i) A private data member can be declared as a friend (ii) A class may be declared as a friend (iii) An object may be declared as a friend (iv) We can use friend keyword as a class name

How many types of polymorphisms are supported by C++? (i) 1 (ii) 2 (iii) 3 (iv) 4

Define string. How does a string type differ from C type string?

WAP in C++ that reads a particular string and displays the frequency of each character in the string.

What is STL? Describe with example.

WAP in C++ using the function count() to how many elements in a container have a specified value.

Explain exception handling and their types.

WAP in C++ to demonstrate the use of multiple Catch statements.

Describe streams.

Write about the following functions : put() ; get() ; width() ; getline() ; fill().

Describe polymorphism with suitable examples.

WAP in C++ using array of pointers to accept desired number of integers and display their sum.

Explain ‘this’ pointer. Differentiate between overloaded functions and function templates.

What is a virtual function? WAP to demonstrate use of virtual functions.

Explain friend function along with example.

Describe type conversion with examples.

Which of the following is not a valid identifier in C++? (i) Return (ii) MyInt (iii) MyInteger (iv) Total3

What is the value of $x$ after the following statements? int x; x = 0; x = x + 30; (i) 0 (ii) 30 (iii) 33 (iv) Garbage

What is the value of the following expression? (true && (4/3 || !(6))) (i) True (ii) False (iii) 0 (iv) Illegal syntax

When defining a class, the class should be composed of the kind of values a variable of the class can contain, and (i) member functions for that class (ii) the keyword private (iii) other class definitions (iv) nothing else

Data members or member functions of a class that are declared to be private may (i) only be accessed by the main program (ii) only be accessed by members of the class (iii) not be accessed by the class (iv) be considered as global variables

When overloading an operator, which of the following is true? (i) One of the arguments must be an object of the class (ii) The operator can be a friend or a member of the class (iii) The operator does not have to be a friend or a member of the class (iv) All of the above (v) None of the above

class derived : public base1, public base2 {} is an example of (i) polymorphic inheritance (ii) multilevel inheritance (iii) hierarchical inheritance (iv) multiple inheritance

In the derived class definition, you list from the base class (i) all the member functions every time (ii) only those member functions that need to be redefined (iii) only those member functions that were in the public section (iv) only those member functions you want to overload

Which of the following is not a valid reason for using exception handling? (i) Throw and catch can be used like goto (ii) The procedure for handling an error depends on the situation (iii) Need to handle built-in exceptions (iv) None of the above

You should make a function a virtual function if (i) every class that is derived from this class uses all the member functions from this class (ii) every class that is derived from this class needs to redefine this function (iii) that function is an operator (iv) only in the derived classes

Write five differences between Procedural and Object-Oriented Programming.

Differentiate between Private, Public and Protected data members of the class using examples.

Mention the difference between C and C++. Why is it necessary to include header files in a program written in these languages?

Write a C++ program to find the sum of the series $1+3+5+\dots+n$.

Define copy constructor. Explain its significance. Under which condition is it invoked? Support your answer with an example.

Discuss the basic data types of C++. Suggest appropriate data type for the following:

Write a program, which will accept a string of maximum 10 characters from the keyboard, and count the occurrences of each of the 5 vowels in the string. The output should be in tabbed format as shown below:

A E I O U 0 1 0 0 1

Explain branching statements used in C++ with example.

What is operator overloading in C++? Explain with suitable example. Also list operators which cannot be overloaded.

Differentiate between Operator and Function overloading with the help of suitable example.

Create a class complex and implement the following:

With relevant examples, explain (i) multilevel inheritance (ii) hybrid inheritance.

Explain the concept of a destructor in a class. What is its role in terms of cleanup of unwanted objects?

How is an exception handling performed in C++? Write a program that throws an arithmetic exception as and when a number input is greater than 9999.

Design and implement a class string using an array, with a maximum size of 20 characters. The class should contain the necessary constructors, destructor, overloaded assignment operator and a friend function for concatenation of two strings. Make suitable assumptions if required. Also write main() for the above.

What is an inline function? In which situations would you make a function inline? Give two examples of inline functions.

Syntactically explain nested "if-else" statement in C++.

Define the following: