I have a problem with structure fields.
I've created a class Point
with one method Move()
that increases or decreases object variable x
by dx
. Another method Print
is used to output results.
In main()
a new instance is created with default x = 3
and dx = 2
, then I call Move()
and Print()
. I expect that value of x
is changed during Move()
and Print()
will produce Final x=5
, but instead of it displays this:
2014/07/28 15:49:44 New X=5
2014/07/28 15:49:44 Final X=3
What's wrong with my code?
type Point struct {
x, dx int
}
func (s Point) Move() {
s.x += s.dx
log.Printf("New X=%d", s.x)
}
func (s Point) Print() {
log.Printf("Final X=%d", s.x)
}
func main() {
st := Point{ 3, 2 };
st.Move()
st.Print()
}