That's it exactly. Without the parentheses, the Transcript thinks that you are trying to send it the message #show:printShowingDecimalPlaces: which it does not understand. By adding parentheses, you are first sending the message #printShowingDecimalPlaces: to 2.54343 (a Float object), which understands the message and answers a ByteString object. You are then sending the message #show: to the Transcript, which now understands that it should display the ByteString as you intended.
Dave
On Sun, Feb 27, 2011 at 10:37:43PM -0500, Steve Thomas wrote:
FYI, I have the same problem in Squeak 4.2 and Etoys 4.1
Also I noticed that if I use parentheses I can get it to work: Transcript show: (2.54343 printShowingDecimalPlaces: 2) - OK does not throw exception
Stephen
On Sun, Feb 27, 2011 at 10:31 PM, Steve Thomas sthomas1@gosargon.comwrote:
Subbu,
Thanks it did help, I got it to work, but I don't understand the following and not sure if it is a bug in Squeak or in my head. I ran the three commands below in a workspace and don't understand why the first one failed
Transcript show: 2.54343 printShowingDecimalPlaces: 2 - Failed Message Not Understood t2 := 2.54343 printShowingDecimalPlaces: 2 - OK Transcript show: t2 - OK showed 2.54 in Transcript
Stephen
On Sun, Feb 27, 2011 at 9:11 PM, K. K. Subramaniam kksubbu.ml@gmail.comwrote:
On Friday 25 Feb 2011 12:07:42 pm Steve Thomas wrote:
How do I print integers or specify that I only want 2 digits to the
right
of the decimal point? (Below is my script). script1
| tmpStr |
tmpStr := 'Im a Bot.\My position is: ' withCRs , self getLocation printString , '\and my direction is:' withCRs , self getHeading printString. self sayText: tmpStr
see printShowingDecimalPlaces: in Integer>>printing category. Also search for 'places' in message window for other options.
HTH .. Subbu
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