Package java.util
Class HashSet
boolean contains(Object o)
Overrides:
_INSERT_METHOD_SIGNATURE_HERE_
Description:
Returns true if this set contains the specified element.
Example
HashSet set = new HashSet();
set.add("value1");
set.add("value2");
if (set.contains("value1"))
Logger.log("This set contians the value: value1");
The example above checks if set contains the value1 string.