; "You may have done more with Java than you know"
  (= __ (class "warfare")) ; hint: try typing (javadoc "warfare") in the REPL

  ; "The dot signifies easy and direct Java interoperation"
  (= __ (.toUpperCase "select * from"))

  ; "But instance method calls are very different from normal functions"
  (= ["SELECT" "FROM" "WHERE"] (map ___ ["select" "from" "where"]))

  ; "Constructing might be harder than breaking"
  (= 10 (let [latch (java.util.concurrent.CountDownLatch. __)]
          (.getCount latch)))

  ; "Static methods are slashing prices!"
  (== __ (Math/pow 2 10))