SE450: Example: Hello World - in a package [29/41] Previous pageContentsNext page

Java uses packages to group classes logically. All classes are in a package. If you don't specify a package, a class is in the default package, and the class has default visibility (it's almost like the class has public visiblility, but it is called package visibility).

The example with a package

        // Filename: Hello.java
        package example;
        /**
        * A Java application that prints the message: "Hello from Venus!"
        */
        public class Hello {
            public static void main (String[] args) {
                System.out.println("Hello from Venus!");
                /* System.out refers to the standard output */
            }
        }
        

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