Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “The Person class directly accesses the city property inside the Address class.”

A block of code is set as follows:

class Person(val name: String, val address: Address) {
    fun getAddressCity(): String {
        return address.city
    }
}
class Address(val city: String)

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “The Business package uses the Persistence package to perform the actual relational database operations for service contracts and households.”

Tips or important notes

Appear like this.