C# Variables

In this chapter you will learn:

1. What are variables
2. Syntax to define C# variables
3. Example for C# variables
4. C# program for variable definition

Description

Variables are used to store values.

Syntax

You declare variables in C# using the following syntax:

Example

For example:

This statement declares an int named i.

After it has been declared, you can assign a value to the variable using the assignment operator, =:

You can also declare the variable and initialize its value at the same time:

If you declare and initialize more than one variable in a single statement, all of the variables will be of the same data type:

int x = 10, y =20;   // x and y are both ints 

Example 2

Let's create another C# program.

class Program/*from w w  w.j a  v a2 s.  c  o m*/
{
    static void Main(string[] args)
    {
        int i = 0;
        int j = 2;
        
        System.Console.WriteLine("i=" + i);
        System.Console.WriteLine("j=" + j);
    }
}

The code above generates the following result.

Next chapter...

What you will learn in the next chapter:

1. What are C# comments
2. What are the three types of comments
3. Single line comments
4. Multiple line comments
5. XML documentation comments

C# Variables