Observer pattern code seem to be incorrect with example output

[tuancode]

Hi,

I bought the design pattern book and practice it. Then, I recognize a small mistake and want to clarify it, also want to support to help book better. From the book, page 60 and 61, we will have output as below:

Current conditions: 82.0F degrees and 70.0% humidity
Avg/Max/Min temperature = 81.0/82.0/80.0
...
Follow source from github, the output should be:

Current conditions: 82.0F degrees and 70.0% humidity
Avg/Max/Min temperature = 82.0/82.0/82.0
...

And

Current conditions: 78.0F degrees and 90.0% humidity
Avg/Max/Min temperature = 80.0/82.0/78.0
Forecast: More of the same
...
Follow source from github, the output should be:

Current conditions: 78.0F degrees and 90.0% humidity
Avg/Max/Min temperature = 78.0/78.0/78.0
Forecast: Watch out for cooler, rainy weather
...