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Chapter 12

Chapter 12. A Very Graphic Story. Overview. Simple GUI Getting User Input Creating a Listener ActionEvents Displaying Graphics Drawing Multiple Buttons Animation Example. Simple GUI. Java using 'swing' for GUIs

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Chapter 12

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  1. Chapter 12 A Very Graphic Story

  2. Overview • Simple GUI • Getting User Input • Creating a Listener • ActionEvents • Displaying Graphics • Drawing • Multiple Buttons • Animation • Example

  3. Simple GUI • Java using 'swing' for GUIs • To display a GUI, you need to 'draw' a window, add content, and display the window • Example Chapter12

  4. Getting User Input • User input is uncertain • You don't want to wait all day for the user • Creating a 'listener' helps handle this • Listeners can be used for all type of input • Serial • Keyboard • Mouse

  5. ActionEvents • We use the ActionEvents class to make listeners • We need to re configure our code to handle this • Then we will • Create an Action Listener object • Link it to a button • Make something happen when the Action Listener reports on the button.

  6. Multiple Buttons (Chapter 13) • Java uses layout managers to place drawing objects • Common ones are: • BorderLayout • FlowLayout • BoxLayout • Lets start with FlowLayout

  7. Multiple Listeners • A simple way is to check the options in a single Listener. • This is not always the best way, but will work for now • Example

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