I am taking my second class in Java and this is based on patterns. I need to create a project for the class and I am a little stuck. I need to use 4 patterns in the project and I am not sure which ones I should focus on as I am just now learning about them. The project I want to create is a simple inventory system, more specifically an asset management system that could track IT hardware types (laptop, workstation, monitor, etc) and then assign values...