1 1/9: Classes and objects

    2 1/14: Interfaces in Space!

    3 1/27: Dictionaries

    4 2/3: Universe

    5 2/24: Java, Arithmetic and Visitors

    6 3/10: Party invitations

    7 3/17: Loops and Big Bang

    8 3/24: Hashes and bloom filters

    9 4/7: Cellular worlds