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  Arrays....
What is the difference between a variable and an array?
 
 
Why arrays are used?
 
 
 
Classes....
What do you mean by separation of Interface from the implementation?
 
Differentiate between a structure and a class.
 
What do you mean by destructor?
 
 
Functions....
Are functions required when writing a C++ program?
 
When does a function need an include directive?
 
 
What are the differences between passing a parameter by reference and by constant reference?
 
 
 
Input / Output....
Write a program that finds the roots of the quadratic equation.
 
Why we include iostream.h file in all of the programs of c++?
 
 
 
Introduction....
What are the preprocessor directives?
 
What is a variable? Also write the rules to give name to a variable.
 
Differentiate between compiler and interpreter.
 
 
Loops....
Write a program to calculate the factorial of n. The value of n should be accepted through keyboard
 
Write a program that reads two integers and prints their Greatest Common Divisor (GCD).
 
Write a program to check the integer value entered by the user, is a prime number or not?
 
 
 
Operators....
Describe arithmetic operators?
 
Write a program that inputs a five-digit number, find the number in reverse order. Also find the difference between the new number and the original number.
 
Calculate the length of the hypotenuse of a right triangle whose base and height are given.
 
 
Selection Structures....
Write a program that reads three nonzero integers and determines and prints if they could be sides of a right triangle.
 
Write a program to accept an integer and print whether the given integer is Odd or Even.
 
Write a program to calculate the electricity bill on the following rates. Cost is USD 0.213 per unit for first 100 units, US$ 0.423 per unit for next 200 units and US$ 0.675 for remaining units. General Sales Tax is added to the bill at the rate of 15% of the total cost of electricity.
 
 
Structures....
What is a structure?
 
Describe the syntax for defining the composition of a structure.
 
 
 
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Life before Computers:

Window was a square or rectangular hole in a room.

Application was something written in paper.

Mouse was an animal.

Keyboard was a Piano.

File was an important office material.

Hard Drive was an uncomfortable road trip.

Cut was done with Knife and Paste was done with Glue.

Web was spider's home.

Virus was flue.

Apple and Blackberry were just fruits.