2.txt

<h2>Variable and Constant</h2>
<h3>Desciption</h3>

In computer programming, a variable or scalar is a storage location paired with an associated symbolic name (an identifier), which contains some known or unknown quantity or information referred to as a value. The variable name is the usual way to reference the stored value; this separation of name and content allows the name to be used independently of the exact information it represents. The identifier in computer source code can be bound to a value during run time, and the value of the variable may thus change during the course of program execution.

<h3>See Also</h3>
<ul>
<li>Non-local variable</li>
<li>Variable interpolation</li>
</ul>