Feature request - simpler constructors
Derek Parnell
derek at psych.ward
Fri Sep 21 05:03:35 PDT 2007
On Fri, 21 Sep 2007 08:43:41 +0100, Janice Caron wrote:
> I tried to look at tango source code, but I can't seem to connect to
> dsource.org right now. Hopefully that's a transient problem.
>
> I know that Sun's official Java tutorial (see
> http://java.sun.com/docs/books/tutorial/java/javaOO/constructors.html)
> tells you to do exactly what I've been talking about. I quote:
>
> public Bicycle(int startCadence, int startSpeed, int startGear) {
> gear = startGear;
> cadence = startCadence;
> speed = startSpeed;
> }
It's just that I'm more likely to do something like ...
this(int startCadence, int startSpeed, int startGear) {
if (startGear > 0 && startGear <= Bicycle.maxGear)
this.gear = startGear;
else
this.gear = Bicycle.defaultGear; // or exception
if (startCadence > 0 && startCadence <= Bicycle.maxCadence)
this.Cadence = startCadence;
else
this.Cadence = Bicycle.defaultCadence; // or exception
if (startSpeed > 0 &&
startSpeed <= Bicycle.maxSpeed(this.gear, this.Cadence))
this.Speed = startSpeed;
else
this.Speed = Bicycle.calcSpeed(this.gear, this.Cadence);
}
than just a simple set of assignments.
--
Derek Parnell
Melbourne, Australia
skype: derek.j.parnell
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