Let's start this test to check if this has created our RDD. By doing this, we can extend our parent RDD and add behavior to our RDD. This is shown in the following screenshot:

"C:Program FilesJavajdk-12injava.exe" "-javaagent:C:Program FilesJetBrainsIntelliJ IDEA 2018.3.5libidea_rt.jar=51687:C:Program FilesJetBrainsIntelliJ IDEA 2018.3.5in" -Dfile.encoding=UTF-8 -classpath C:UsersSnehaIdeaProjectsChapter07outproductionChapter07 com.company.Main

Process finished with exit code 0

In the next section, we'll be using RDD in an immutable way.