Groovy - TechnoScripts

Groovy

Groovy programming language tutorials, examples, and best practices.

10 Groovy Switch Statement Examples with Pattern Matching

The enhanced Groovy switch statement goes far beyond Java’s version. See 10 examples matching strings, ranges, regex, classes, and closures. Tested on Groovy 5.0.6. “Java’s switch is a gate with a few locks. Groovy’s switch is a gate that accepts fingerprints, retina scans, and a secret handshake.” Last Updated: July 2026 | Tested on: Groovy 5.0.6, Java 17+ | Difficulty: Beginner to Intermediate | Reading Time: 20 minutes The groovy switch statement goes far beyond what Java offers. Where Java ... Read More

10 Quick Groovy times() Loop Examples to Repeat Actions Easily

You need to seed five test users, retry a flaky call three times, or print a separator once per column. Java makes you write a counter loop for each of those. The Groovy times loop turns it into 5.times { }: no counter variable, no off-by-one. Here are 10 tested examples, plus upto(), downto(), and step() for when a plain count is not enough. “Simple things should be simple, complex things should be possible.” Alan Kay Last Updated: July 2026 ... Read More

10 Useful Groovy find() Method Examples to Locate First Match

You need the first admin in a user list, and Java hands you a loop, an if, and a break statement. The Groovy find method does it in one line: users.find { it.admin }. It walks the collection, tests each element against your closure, and stops at the first match. The 10 tested examples below cover lists, maps, strings, and the null-safety traps. “Finding a needle in a haystack is easy when you have the right method. In Groovy, that ... Read More