Simple Snake game in Java

This game compiles in OpenJDK 16 using the "Main" class as the starting point. I have also included a compiled jar file.

This game uses a self-made event listener to re-shift focus. This is only because I wanted to try implementing one. It is only used to request focus on the main game frame - which can be done using a parent lookup function instead.

This game draws all the objects (snake blocks/food) rather than updating the screen/sections. This is a very costly way of updating the graphics, and I would not have done so again with my current experience.

• There are a lot of inefficiencies and unneeded lines of code.
• There are also a lot of repeated segments of code, especially in the move section.
• "timer" the game's main timer's delay gets reduced in game, but not reset on restart.
• No error checking/robustness on pieces of code. For example: top10 file existence, or filled under/over 10 slots.