question: @ Override public int hashCode ( ) { int result = 193 ; long temp = Double . doubleToLongBits ( this . x ) ; result = 37 * result + ( int ) ( temp ^ ( temp > > > 32 ) ) ; temp = Double . doubleToLongBits ( this . y ) ; result = 37 * result + ( int ) ( temp ^ ( temp > > > 32 ) ) ; return result ; }
target:  Returns a hash code for this instance.