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In the left panel of VSCode, navigate to my-app/src/main/java/com/mycompany/app, and open App.java.

Launch VSCode and open the my-app directory from the File menu.This godawful directory structure – that’s how Java apps are built. You’ll see that Maven created a hello-world app for you. Run a directory listing and you’ll see App.java.(If you’re on Windows, your slashes lean the other way.) cd to my-app/src/main/java/com/mycompany/app.mvn archetype:generate -DgroupId= -DartifactId=my-app -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false.In your Terminal window (Command Prompt), navigate to an empty directory, where you wish to create your Java project.Add the M2 (bin) directory to your PATH.Set a M2 (not M2_HOME - just ‘M2’) environment variable to point to the bin subdirectory of the MAVEN directory.Set a M2_HOME environment variable to point to the MAVEN directory.Store it in a directory all by itself.Choose the link from the “Link” column to start the download. For Windows, download and unzip Maven from.export M2_HOME=/usr/local/Cellar/maven/3.5.2/libexec.bash_profile, substituting the value for Maven home as reported by mvn (above). We’re going to abandon this stand-alone source file and create a hello-world Maven project we’ll also set you up to use the Java debugger. Maven revolves around a ‘POM file’ (Project Object Model), which is written in XML. Maven is good for our purposes because VSCode works with it and so does Eclipse, in case you later decide you have to suffer Eclipse. There are multiple build tools which Java developers use because developers often say, “This is awful. Most Java projects are godawful complex things which require a ‘build tool’ to compile and assemble them into something you can run. Typically, your app will be comprised of many files, and you’ll have to create a ‘project’ to tie them all together. This is a special process for a single-source-file Java app. Note that you will almost never create a Java program this way. Observe that javac compiled test1.java to test1.class. ‘java’ is command which used to run a compiled program. cd to the directory where you saved test1.java.a Java file that is not part of a project.) This happens every time you work with a stand-alone Java file (i.e.It might give you a “Classpath is incomplete” warning.