The Cyclomatic Complexity is measured by summing the number of ``and``, ``or`` and ``xor`` operators, the number of control flow statement like ``IF``, ``WHILE``, ``DO``, ``RETURN`` ... in the body of a class plus one for each method. Even when the Cyclomatic Complexity of a class is very high, this complexity might be well distributed among all methods. Nevertheless, most of the time, a very complex class is a class which breaks the Single Responsibility Principle and which should be re-factored to be split in several classes.
