I am unable to copy/paste weather station class into the eclipse folder as shown in the instructions.
I have tried to add the file to the src folder in the file directory however it does not show up in package explorer.
Show your Package Explorer. Show the error/what goes wrong.
Did you unzip/extract the file? (WeatherStation.zip) And then copy the unzipped file? Did you read the last lines of step 2? ("If all 3 .java files are not in the same package...")