3. Improvements

• Extend NumTextField to know about the next field on the panel, so it can sequence automatically.
• Is this reusable?
• Maybe we need a subclass of NumTextField: FormNumTextField to be used when filling in forms
• What about formatted numbers?
• add an optional picture clause

Improvements

• Generalize the Hops model
• Create a reusable linear model (y=mx+b)
• solve for any one given the other three
• Customize this to create Hops class
• b=0 (known) and y=HBU, m=Alpha Acid and x=Weight
• Can also be used for
  • distance=rate*time
  • temp=pressure*volume
  • Source Lines=# programs*average size

Improvement?

• Generalize to have a 4-variable model
• two forms: y=mx+b, y=ax*n
• Use the existing state-change logic to determine what should be computed
• Have a “subclass callback” which contains the actual formula.
• abstract place-holder in the parent class
• protected in the linear and exponential specializations of this model

Improvements

• Fix the look
• Nest the current panel within a BorderLayout panel
• Add a title at the “North” of the border layout
• Use larger fonts
• could be a parameter from the HTML page which starts this applet
• Use GridBagLayout instead of GridLayout