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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 separation of Interface from the implementation?
 
Discuss different types of constructor.
 
What do you mean by constructor?
 
 
Functions....
When does a function need an include directive?
 
 
What is the difference between a function and its definition?
 
 
Are functions required when writing a C++ program?
 
 
Input / Output....
Why we include iostream.h file in all of the programs of c++?
 
 
Write a program that finds the roots of the quadratic equation.
 
 
Introduction....
Differentiate between compiler and interpreter.
 
What is a variable? Also write the rules to give name to a variable.
 
Describe data types available in C++.
 
 
Loops....
Write a program that reads two integers and prints their Least Common Multiple (LCM).
 
Explain the syntax and purpose of for loop with an example.
 
Why the use of the goto statement generally discouraged?
 
 
Operators....
Calculate the length of the hypotenuse of a right triangle whose base and height are given.
 
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.
 
Explain relational operators used in C or C++.
 
 
Selection Structures....
Differentiate between the if-else structure and switch structure
 
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.
 
Explain switch statement with an example.
 
 
Structures....
What is a structure?
 
Describe the syntax for defining the composition of 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.