To create the Hello World example in gradle we must define a task that will print a string to the console using Groovy. We will use Groovy's printLn to call Java's System.out.printLn method to print the text to the console. task hello { doLast { println 'Hello world!' } } We can then execute this task by using > gradle hello or > gradle -q hello.

First you set up a Java project for Gradle to build. To keep the focus on Gradle, make the project as simple as possible for now. Create a root project directory named HelloWorld and cd HelloWorld . on Windows you can create this directory manually. └── src └── main └── java └── hello

Here HelloWorld uses Joda Time’s LocalTime class to get and print the current time. If you ran gradle build to build the project now, the build would fail because you have not declared Joda Time as a compile dependency in the build. For starters, you need to add a source for 3rd party libraries in your build.gradle file. repositories {

A Gradle project is any goal what we want to do with Gradle, assemble a JAR, compile a Java project, run Unit tests, deploy an application. A Gradle task is the minimum unit of work, represents an atomic piece of work. The main goal is define some tasks to accomplish a Project. In our first basic task helloWorld we can see what happens: