Classes: Constants #

A class can contain constants, which are similar to variables, except that their value cannot be changed.

class Constants
{
    public const float PI = 3.14;
}

Constant Access #

Refer to Expressions: Class Operations - Constant Access for more information.

Constant Visibility #

Constants can be declared as public, protected or private.

class Constants
{
    public const float PI = 3.14;
    protected const float E = 2.71;
    private const float GOLDEN_RATIO = 1.618;
}

Final Constants #

Constants can be declared as final, which means that they cannot be overridden in a child class.

class Constants
{
    final public const float PI = 3.14;
}