----------------------------------------------------------- Class: Array
      Arrays are ordered, integer-indexed collections of any object.
      Array indexing starts at 0, as in C or Java. A negative index is
      assumed to be relative to the end of the array---that is, an index
      of -1 indicates the last element of the array, -2 is the next to
      last element in the array, and so on.
      Enumerable(all?, any?, collect, detect, each_cons, each_slice,
      each_with_index, entries, enum_cons, enum_slice, enum_with_index,
      find, find_all, grep, include?, inject, map, max, member?, min,
      partition, reject, select, sort, sort_by, to_a, to_set, zip)
 Class methods:
      [], new
 Instance methods: