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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?
 
What do you mean by constructor?
 
Differentiate between a structure and a class.
 
 
Functions....
What are the differences between passing a parameter by reference and by constant reference?
 
 
Where can the declaration of a function be placed?
 
 
What is wrong with the following declaration?
int f(int a, int b=0, int c);
 
 
 
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 is testing and debugging?
 
Differentiate between Low Level Languages and High Level Languages.
 
What is the purpose of escape sequences?
 
 
Loops....
Differentiate between break and continue statements.
 
Why the use of the goto statement generally discouraged?
 
Write a program to check the integer value entered by the user, is a prime number or not?
 
 
 
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.
 
Write a program that takes radius of a circle from the user and calculates the diameter, circumference and area of the circle and display the result.
 
Describe arithmetic operators?
 
 
Selection Structures....
Write a program that reads three nonzero integers and determines and prints if they could be sides of a right triangle.
 
Differentiate between the if-else structure and switch structure
 
Explain switch statement with an example.
 
 
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.