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  Arrays....
Why arrays are used?
 
 
What is the difference between a variable and an array?
 
 
 
Classes....
What do you mean by destructor?
 
What do you mean by constructor?
 
What do you mean by separation of Interface from the implementation?
 
 
Functions....
What are the advantages of using functions to modularize a program?
 
 
Are functions required when writing a C++ program?
 
Where can the declaration of a function be placed?
 
 
 
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 machine language?
 
Differentiate between compiler and interpreter.
 
 
Loops....
Write a program that will generate a random number in the range 1 to 999. The user is to guess the number. Your program provides maximum 10 attempts to the user. The user inputs his/her guess. The program helps the user in such a way that it tells the user if the guess is larger or smaller than the number. In case of success the program displays - You have succeeded - along with number of attempts made, other wise -Sorry you could not guess-.
 
Why loops are so important in all programming languages?
 
Write a program that reads two integers and prints their Greatest Common Divisor (GCD).
 
 
Operators....
Describe arithmetic operators?
 
Explain relational operators used in C or C++.
 
Explain with examples the logical operators used in C/C++.
 
 
Selection Structures....
Differentiate between the if-else structure and switch structure
 
Write a program which checks whether the roots of the quadratic equation are equal, real or imaginary.
 
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....
Describe the syntax for defining the composition of a structure.
 
What is a structure?
 
 
 
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Here you can find questions about different topics in c language and c++ language. Similarly programming problems with their solutions by different people of the field. So that you can choose best answer of a theory question or a best solution of a programming problem.

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.