2 <clause number="12.1" title="Variable categories">
3 <paragraph>C# defines seven categories of variables: static variables, instance variables, array elements, value parameters, reference parameters, output parameters, and local variables. The sections that follow describe each of these categories. </paragraph>
5 <example>[Example: In the example <code_example><![CDATA[
10 void F(int[] v, int a, ref int b, out int c) {
15 ]]></code_example>x is a static variable, y is an instance variable, v[0] is an array element, a is a value parameter, b is a reference parameter, c is an output parameter, and i is a local variable. end example]</example>