Sudo via SSH lets you run admin commands on a remote server with elevated privileges. Learn the commands with this concise guide.

Learn how to use the Command pattern to encapsulate requests as objects that you can execute alone or in sequence in your Java programs.

Take advantage of Docker to ease Java development. Learn how to update a running Java codebase (without restarting the container) and to debug into a remotely running containerized Java app.

Step 5: Run the Java preview feature code With the code compiled, you can execute it by adding the --enable-preview switch to the java command: jdk13@preview:$ java --enable-preview ...

If Java is not recognized as internal or external command, you need to make sure that the installation is not problematic and its path is recognized as system variables.

Enter the command " ls " to get the exact name of the java binary file in this location. Run the following commands in order, substituting " appname " with the name of the binary file: ...