question: @ Override public boolean equals ( Object obj ) { if ( ( obj instanceof KeepAliveKey ) == false ) return false ; KeepAliveKey kae = ( KeepAliveKey ) obj ; return host . equals ( kae . host ) && ( port == kae . port ) && protocol . equals ( kae . protocol ) && this . obj == kae . obj ; }
target:  Determine whether or not two objects of this type are equal