Learn Groovy (a dynamic scripting language for the JVM) from the ground up to production-grade: pre-requisite skills & environment setup, background history & why choose Groovy, core concepts & language architecture, basic syntax & data types, control flow & functions, object-oriented Groovy, collections & the Groovy JDK, exception handling & debugging, scripting & command-line automation, DSL & domain-specific languages, Java & library integration, testing & quality, Gradle & build automation, Jenkins pipeline & CI/CD, configuration, secrets & environment, metaprogramming & AST transformations, performance & optimization, web & API development, plugin & extension development, operational readiness & runbooks, security & compliance, ecosystem & community resources, all the way to future-proofing Groovy skills — 23 episodes in total.
Before touching Groovy, you need to master basic programming concepts and the JVM ecosystem. In this episode you set up the JDK and the Groovy SDK, choose an IDE that supports Groovy, and verify your first installation with a simple script.

This episode traces Groovy's history from its birth in the early 2000s to becoming an official scripting language in the JVM ecosystem. You will also compare Groovy with Java, Kotlin, and Scala, and understand the advantages of concise syntax, metaprogramming, and DSLs.

This episode dissects Groovy's architecture: program structure, the execution model on the JVM, compilation into bytecode, and two-way interoperability with Java. You will also run Groovy from within a Java application using GroovyShell.

This episode dissects Groovy's basic syntax: dynamic variables with def, primitive types, strings, lists, and maps. You will also learn GString, multi-line strings, as well as string operators and Groovy literals that make writing code much more concise.

This episode covers Groovy's control flow: if/else, switch, loops, and ranges, followed by closures, method definitions, and optional parameters. You will also understand Groovy truth, safe navigation with operators, and Groovy's signature null-safe patterns.

This episode covers object-oriented programming in Groovy: classes, objects, properties, and constructors, then inheritance, traits, interfaces, and mixins. You will also be introduced to AST transformations and annotation-driven behavior that drastically reduce boilerplate.

This episode dissects the Groovy Collection API for List, Map, and Set, including closure-based iteration with each, collect, and findAll. You will also see the Groovy JDK enhancements for String, File, I/O, and Date that simplify data processing.

This episode covers exception handling in Groovy: try/catch/finally, multi-catch, and resource management. You will also create custom exceptions, handle runtime errors, and practice techniques for debugging Groovy scripts and inspecting runtime values.

This episode takes you into the world of Groovy scripting for task automation: parsing command-line arguments, reading environment variables, file handling, text processing, and managing log output. You will build a CLI script ready for production use.

This episode covers the principles of building DSLs in Groovy, from the basic concepts to builder-style DSLs and declarative configuration. You will create DSL examples for deployment and testing that leverage closures, delegates, and methodMissing.
