I used Eclipse to save the JAR creation as an ANT script but upon calling ant MakeJar (it was called MakeJar) it says:
Target "MakeJar" does not exist in the project "Zombies".
Total time: 0 seconds
What's going on? It exists at the same directory as build.xml.
I fixed it! I just had to rename it to build.xml and then it worked
EDIT: I scripted for awhile and finished making my script that will update my game for me in one click. I have learned the awesomeness of ANT. It's a great tool