Need helping developing code for this application

You are developing an application that needs to And the maximum or the minimum value of 3 numbers the user has typed in. The application will be a Graphical User Interface (GUI) that allows the user to type in 3 numbers and then she can select the Maximum button or the Minimum button to determine which to find. You are to develop the planning products for this application. Design the Interface Identify the controls on the interface along with their properties (i.e. names) Develop the flowchart for the logic behind the application ***Submit a word document with your solutions ***Pay special attention to the symbols you use in your flowchart (i.e. a diamond implies a decision is being made) ***Be sure to understand the problem you are trying to solve (i.e. have you considered faults)