There are a number of text conventions used throughout this book.
CodeInText: 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: "At the backend, modify the save method of ProductOrderService.java to create an Invoice and Shipment for the ProductOrder and save them all."
A block of code is set as follows:
entity Product {
name String required
description String
price BigDecimal required min(0)
size Size required
image ImageBlob
}
enum Size {
S, M, L, XL, XXL
}
entity ProductCategory {
name String required
description String
}
When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
entity ProductOrder {
placedDate Instant required
status OrderStatus required
invoiceId Long
code String required
}
Any command-line input or output is written as follows:
> cd invoice
> ./gradlew
Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "You can alternatively test this via your Gateway application. Log in to  our Gateway application and then navigate to Administration | Gateway."
Warnings or important notes appear like this.
Tips and tricks appear like this.
