Rob Wagner questions

Rob Wagner answers

• rails 4 undefined method `_index_path' when using form_for with plural class name
• Why am I getting an exception when running a JAR file from the command prompt?
• Error handling using integers as input
• when adding 2+ buttons to east layout, only 1 shows
• ImageIO is unable to write buffered image to file
• What does \b really mean in Ruby regular expressions?
• Do we use try,except in every single function?
• Can batch files not process large numbers?
• How to set the collection name in Mongoid for a subclass?
• Push a file to Heroku that's not in my git repo.