Groovy Development Kit (GDK)

Groovy comes with a large library of classes that can be used to make the life of a developer easier. Some offer new features; the others are wrappers around existing Java Class Library classes to make them easier to use or enhance their functionalities. In this section, we will be looking at some important classes and types of Groovy's runtime library, sometimes called the Groovy Development Kit (GDK), which is installed as part of your Groovy installation.

Groovy Strings (GStrings)

Groovy offers its own variant of the java.lang.String class: groovy.lang.GString. Whenever you create a string with double quotes, Groovy looks whether a feature of GString is used. If that's the case, then...