The Day The Quadogy

Today I watched a video tutorial on linked lists for java. They seem kind of useless and I'm not really sure what their purpose is and how they're different from arrays or arraylists. They seem a little bit specific and I don't think I'll need to use them in my strategy game. About that strategy game that I wanted to create , I googled some examples of java text-based strategy games that I could base my code on. I watched a guys youtube video on him making one of those. I'm about halfway through the video and now I have a better idea of how to start off making my game.