loading a method from a class in a package

this example from a Well House Consultants training course
More on this [link]

This example is described in the following article(s):
• Java Programming Fundamentals - [link]

Source code: Niamh.java Module: J050

// If you want to look in current package and also in disney
// for any extra classes:
// import disney.*;
// Otherwise you have to specify the full package name

/*
You won't have all yor code in your current class file - or even
in the current directory. You can load other classes from other
'packages' (directories) by giving the package name. Within the
package, care must be taken to ensure that all methods are marked
public, protected or private as necessary (or are not marked at all
if you want them to be visible within their own directory / package
but not outside)
*/

public class Niamh {
public static void main (String [] args) {
        int totarea = disney.Orlando.getarea(30,40);
        System.out.println("Area is "+totarea);

        for (int h=2; h<24; h+=2) {
                disney.Hour foodtime = new disney.Hour(h);
                System.out.println ("It is " + foodtime.gethour() +
                        " which is "+ foodtime.get12hc() +
                        " in the "+foodtime.getampm());
                }
        }
}

/* ------------ Sample output

Dorothy-2:java grahamellis$ java Niamh
Area is 1200
It is 2 which is 2 in the am
It is 4 which is 4 in the am
It is 6 which is 6 in the am
It is 8 which is 8 in the am
It is 10 which is 10 in the am
It is 12 which is 0 in the pm
It is 14 which is 2 in the pm
It is 16 which is 4 in the pm
It is 18 which is 6 in the pm
It is 20 which is 8 in the pm
It is 22 which is 10 in the pm
Dorothy-2:java grahamellis$

********** If you get error messages like this one, it means that
********** you have not compiled the call you have called in to be
********** within the package. i.e. (in this specific example)
********** you have probably missed off "package disney" within it

Niamh.java:5: cannot access disney.Orlando
bad class file: ./disney/Orlando.class
class file contains wrong class: Orlando
Please remove or make sure it appears in the correct subdirectory of the classpath.
        int totarea = disney.Orlando.getarea(30,40);
                            ^
1 error
Dorothy-2:java grahamellis$

********** END OF ERROR SAMPLE

*/

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