Why are there so many Java files in my "All My Files" section in Finder

Any time I try to open the section "All My Files", it takes a long time to load because it has so many of these files on it:

I believe there are several thousand of these files. The only thing that I can think of is that these files might be from Eclipse, a Java editor (I am learning to code in Java). How do I make them go away without messing anything up? Thanks in advance!