In programming, variables are like labeled containers that hold some value. The data may be in the form of a number, text, boolean (true / false) or some other type.
The term "variable" means "changeable" hence the value that a variable holds can be changed any time.
We can create a simple variable in C# using the
The different components of this syntax are highlighted in the graphic below:
The equal sign (
=) is called the assignment operator. It is used for assigning values to variables.
We will only use numbers for values of variables in this section. In the next section, we will learn how to work with different types of data in appropriate detail.
A statement which includes
=operator is called an Assignment Statement, for-example:
variableName = value.
This above code creates a new variable called
myVar which holds the value
10. It then outputs the value of the variable using the
We can change the value it holds using the assignment operator:
varkeyword is only used when creating a new variable. Therefore when we are assigning a new value to an already declared variable we only use the assignment operator (
=), as is the case in the
myVar = 20statement.
Which keyword is used for creating a new variable?
Select the correct answer
Everything was clear?