HashCode and Equal

Hi there, I have question about hashCode and equal and I would like to know what is the <contract> that hashCode must satisfy with respect to the equals method?Thank you
[189 byte] By [aaq2005a] at [2007-10-2 19:21:00]
# 1
If a.equals(b) returns true, then a.hashCode() must return the same value as b.hashCode().
jverda at 2007-7-13 21:04:41 > top of Java-index,Developer Tools,Debugging and Profiling Tool APIs...