Practice pieces

Inheritance: extension

This practice piece is all about extending classes.

Hints:

Start simple, with an empty Land class that extends the Point class. Keeping everything in the Point class public, make an object in your main class of this Land class and try to access its x and y variables.

Then add a String landuse variable to Land, and check you can access that from the object.

Finally, change the Point class variables to private and check whether you can access them from the Land object. Add accessor(get) and mutator(set) methods for x and y to Point, making sure they're public, and try to use them via the Land object.

If you need more help, here's the answers (or one option, anyhow).