Eclipse is a very popular Java IDE. Download and install Eclipse from the following URL -
The Eclipse project files are contained in the repository and can be imported into Eclipse. Follow t hese instructions on how to import a project -
The application's code uses some features found in JDK 8. Download the JDK
http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
The project uses Gradle as the build tool. You can read more about Gradle here -
The project provides a Gradle wrapper (gradlew). The Gradle wrapper will download and install the appropriate Gradle version when a command is first executed.
To build the application, run the following Gradle command -
gradlew build
The build command will create an executable JAR file that will be found in "application/build/libs".
You can execute the JAR file using the following command
java -jar ./build/libs/image-gallery-0.1.0.jar
The application should be running at http://localhost:8080/
There are some images in the "application/test-images" folder that you can use to verify your setup.