I am new to Flash Builder and designing apps. I am trying to add a function that lets me undo previous actions that have occurred. For this I would like to create a stack structure which "pushes" actions that occur and whenever the undo button is hit the actions will be "popped" returning to the value it once was.
The basis of why I want to store values is that I am subtracting numbers from a larger number. If the undo button is pressed then the previous subtracted value will be added back to the total.
If anyone has any tips on creating a stack structure and its functions I would be very interested.