Enums – more useful

• EnumSet - high-performance Set for enums

• • Implemented as bit-vector (long)
  • Provides useful functions: EnumSet.allOf(Class eltype); EnumSet.complementOf(EnumSet e); EnumSet.copyOf(Collection c); EnumSet.noneOf(Class eltype); EnumSet.of(E … e); EnumSet.range(E from, E to);

• EnumMap - Analogous Map for enum keys

• • Implemented as array

Notes: