Code snippets, or Live Templates as they are called in JetBrains IDEs, can help you save and reuse code. To use them, type the Live Template abbreviation and press ⇥ (macOS) / Tab (Windows/Linux) to expand it. You can also press ⌘J (macOS) / Ctrl+J (Windows/Linux) to check what code snippets are available in the current context.

To see the full list of available code snippets, go to Preferences / Settings | Editor | Live Templates.