Data Types

Data Types

Data types define what information is stored

The most used of them are:

int Whole number.
double Floating point number.
string Sequence of characters (text).
char Represents a single symbol.
bool Can have only 2 values - true or false.

Reading And Printing Data

  • Console.ReadLine(); - reading data.
  • Console.WriteLine(); - printing data.

Make sure using System; is added in order to use them.


The variables are used to store data of certain type.

Their value can be changed any time.

Example of variables definitions:

Basic program example:

Write a program that prints "Starting the program." Afterwards it must read a word and print it back.





  • using System; is added so Console.ReadLine() and Console.WriteLine() can be used.
  • Console.WriteLine() is used to print message to the user.