I have tried my best to optimize readability, if you have any question about my code, please feel free to contact me.

All labs are finished.

HW1~5 are finished, HW6 and HW7 are too difficult for me.

It can run, but there is an issue in filename.
In NBody.java, the filename need to be "images/starfield.jpg" instead of "starfield.jpg", which lead to test failed.

In the standard implementation of ArrayDeque.java, when the array is empty and the addFirst() operation is performed, nextLast will move one place to the right, instead of nextFirst moving one place to the left, which is different from my implementation.

JavaFX is hard to use, I didn't finish it.

I have finished the most difficult part