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

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 ...

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: ...