In order to run the programs in this repository you will need to save the the stdlib.jar and then either make an alias that refrences it (i.e. -cp .:desktop/stdlib.jar) or input what is in the parenthese before the compile / run command on the command prompt. Feel free to message me with any questions and hopefully I can help.
A side note - each folder contains all the files necessary for the final client program within that folder to run.