1) There was a problem when I tried to run the programm, it asked for a previous class I had already removed. So,I had to create a new one with the same name it was asking for (gonna erase it later)
2) Made a JUnit "GraphTester" to test the code I have so far for graphs. Before I keep writing code, I need to test and leave the code usable I have so far.
3) After I made the JUnit, there have been some problems with the test cases, so I am working on that. The classes involved are : SimpleList (DeleteHead method) and Graph (describe and exists methods)