container
Interface EqualityTester

public interface EqualityTester

Used to compare keys for equality, just as java.util.Comparator compares them for order. A hash function should also be defined so that equal keys get the same hash code. An EqualityTester object might expect keys of a particular type. Then its methods should throw a ClassCastException when given keys of the wrong type.

Method Summary

boolean	equal(java.lang.Object a, java.lang.Object b)
int	hash(java.lang.Object a)

Method Detail

equal

public boolean equal(java.lang.Object a,
                     java.lang.Object b)
              throws java.lang.ClassCastException

java.lang.ClassCastException

hash

public int hash(java.lang.Object a)
         throws java.lang.ClassCastException

java.lang.ClassCastException