+ public int hashCode() {
+ return new Double(frequency).hashCode();
+ }
+
+ public boolean equals(Object o) {
+ if (o == null)
+ return false;
+ if (!(o instanceof AltosFrequency))
+ return false;
+ AltosFrequency other = (AltosFrequency) o;
+ return other.frequency == frequency;
+ }
+