Detecting the clicking of two specific JButtons to create an event

[matinthehat]

Hello Everyone

I am trying to make a java swing/awt app that is a basic simulation of a beverage vending machine.

I need the program to recognise the clicking of two specific JButtons for a product code.

For example if JButton 'E' was pressed then JButton '1' was pressed the program would know that is the code for soda and display the relevant message.

Is there anyway to do this?

Thanks you!

[Fubarable]

You would likely have a non-GUI model controlling the logic. It would know for instance that money has been inserted, how much, and would keep track of what button has been pushed. I'm thinking of something like

class VendingModel {
  private int centsEntered = 0;  // don't use a double for this!
  private String letterButtonText = "";
  private String numberButtonText = "";
  
  // constructors, getters, setters, etc...
  // method addToCentsEntered(int moreCents) {...}
  // method processOrder() {...}
}

And then the GUI would hold an instance of this model, and if money is entered would increment the centsEntered, if a button is pressed would call the appropriate model method in the button's actionListener,...etc