oopm quiz 1

Which header file is required for cout and cin in Turbo C++?

• conio.h

• iostream.h

• stdio.h

• iomanip.h

In Turbo C++, the return type of main() is usually written as:

• void

• int

• char

• float

What will be the output of cout << "Hello World"; ?

• hello world

• hello world

• Hello World

• HELLO WORLD

#include <iostream.h>

#include <conio.h>

void main() {

int a = 5, b = 2;

cout << a / b;

getch();

}

What will be the output?

• 2.5

• 2

• 3

• Error

Which function is used to pause the output window until a key is pressed?

• delay()

• stop()

• getch()

• exit()

Which control statement is used in C++ to choose one option from many?

• if-else

• switch

• for loop

• goto

What will be the factorial of 5 calculated by the program?

• 25

• 100

• 120

• 60

Which keyword is used to define a class in C++?

• object

• class

• struct

• def

#include <iostream.h>

#include <conio.h>

void main() {

int a = 10, b = 20;

cout << "Sum=" << a + b;

getch();

}

• Sum=30

• 30

• 10+20

• Error

#include <iostream.h>

#include <conio.h>

class Student {

int age;

char name[20];

public:

void input() {

cout << "Enter name and age: ";

cin >> name >> age;

}

void display() {

cout << "\nName: " << name;

cout << "\nAge: " << age;

}

};

void main() {

clrscr();

Student s;

s.input();

s.display();

getch();

}

In this program, what is the name of the class?

• Student

• Object

• Person

• Display