NetBeans IDE is free and open source and has a big community of users. You can download the NetBeans IDE from its official website, https://netbeans.org/downloads/.
At the time of writing this book, NetBeans for Java 9 was available only as a nightly build (downloadable from http://bits.netbeans.org/download/trunk/nightly/latest/). As shown in the following screenshot, download all the supported NetBeans bundles as we'll use Javascript too:
GlassFish Server and Apache Tomcat are optional. The required packs and runtimes are denoted as Already Installed (as NetBeans was already installed on my system):
After downloading the installation, execute the installer file. Accept the license agreement as shown in the following screenshot, and follow the rest of the steps to install the NetBeans IDE...