build me a java program (POS) for my business

I need someone who can create or build me a java program (POS) for my business. We can discuss the project later if you’ve get hired.
But I need to see first your sample works. Any JAVA PROGRAM that you’ve made will do. Please send your any JAVA PROGRAM (POS) that you’ve done. I need to see a minimum of 3 classes including main class, I only need to see the console only and no GUI forms, and I need to see that your java program that you’ve made can connect to database.