Cash Register v1.0

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Hello Im back Sourcecodesterian (What Sourcecodesterian? )!! ^_^ I only developed this urgent program after almost 24 hours of programming . This project includes the ff.: *Cash register - ready for barcode reader *product Inventory *Critical Stocks Reporting :( Crystal report 8.5 requsted by the clients ^_^ ) *Day to day Transaction report To Beginners out there, this is not a pure OOP code due...