In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Layers are initialized and calculated as well as the neurons; they also implement the init() and calc() methods."

A block of code is set as follows:

public abstract class NeuralLayer {
  protected int numberOfNeuronsInLayer;
  private ArrayList<Neuron> neuron;
  protected IActivationFunction activationFnc;
  protected NeuralLayer previousLayer;
  protected NeuralLayer nextLayer;
  protected ArrayList<Double> input;
  protected ArrayList<Double> output;
  protected int numberOfInputs;
}

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "After selecting the parameters, the training begins by clicking the Start Training button."