If you have a Web or other computer-based small business, you might find that you need to do some Java programming. Java is a cross-platform programming language from Oracle that anyone can use.

signed@jar /c/ jarsigner / example ... files with jarsigner, assuming you have Java installed, are: Create a JAR file with Java’s JAR utility Create public and private keys with Java’s keytool Export ...

packages, and without playing with POM files or adding JAR files ... step-by-step JAX-RS RESTful web service example in Java using Eclipse and TomEE Plus. The full source code for this example can be ...