I use Groovy as a scripting language, to help me do quick and dirty processing. I often need to reference its syntax. So here’s my personal cheat sheet.

Groovy; Groovy Cheatsheet. Created by Jana Volencova. This section is meant as a quick library of copy/paste code snippets. For details on functions. Here you can find documentation on all of Groovy's commands and features. Add to Discord Commands Premium Support Login 🍪 Hey! Do you like cookies? We do, so we implemented some in our website! Add to Discord Commands Premium Support Login Commands All Basic Player Queue Audio Effects.

Basic

Prints text to the console. For complex GString expressions, use ${expression}.

Loops

Loop a range (both inclusive). Download next driver.

Loop a range (upper exclusive).

Loop a list.

Loop a map.

Closure style looping. The collection being iterated is returned.

Strings

Escaping

Substrings

Tokenizing. Returns ['Hello', 'World!']. Note that using split(' ') in this case (where there are 2 spaces between Hello and World!) will result in 3 elements ['Hello', ', 'World!'].

Regex

Files

Iterate each file in a directory. it is a File object.

Match certain files in directory. See regular expression.

Iterate all files in directory recursively.

Read whole text file.

Read text file line by line.

Write text to file.

Collections

Basic operations

Find first item matching closure. Returns 7.

Find all items matching closure. Returns [7, 11].

Operate on each element. Returns [3, 4, 6, 8].

Join elements into String. Returns '2 3 5 7'.

Date/Time

Basic operations Drivers phoenix.

Groovy Cheat Sheets

JSON

SQL

Connect

Select

Insert/Update/Delete

Batch

One-row

Gradle Cheat Sheet

PostgreSQL import

MySQL import

Threading

Run a thread.

Networking

Grab content from URL. Operations are identical to stream manipulation.

Connect via TCP.

Proxy environment

Misc

Object inspection

Shorthand for Math.pow().

Use ?. notation to help get around NPEs.

GUI - SwingBuilder
Below is an copy-style example of what can be done. Refer to the Widgets List for more documentation. Most bean-style attributes can be directly set in the constructor.

Groovy Regular Expressions Cheat Sheet

Jenkins Groovy Script Examples

From here you can see how to create JFrames, BorderLayout, GridLayout, JPanel, JLabel, JComboBox, Borders, ActionListeners, and how to set their attributes.