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Trail: Creating a GUI with JFC/Swing
Lesson: Using Swing Components

## Questions and Exercises: Using Swing Components

> Use the information in this lesson and the component how-to sections to help you complete these questions and exercises.

### Questions

> 1. Find the component that best fits each of the following needs. Write down both the component’s common name (such as “frame”) and find the component's how-to page online. [Hint: You can use A Visual Index to the Swing Components to help you answer this question.]

> > a. A component that lets the user pick a color.
> > b. A component that displays an icon, but that doesn’t react to user clicks.
> > c. A component that looks like a button and that, when pressed, brings up a menu of items for the user to choose from.
> > d. A container that looks like a frame, but that appears (usually with other, similar containers) within a real frame.
> > e. A container that lets the user determine how two components share a limited amount of space.

> 2. Which method do you use to add a menu bar to a top-level container such as a `JFrame`?

> 3. Which method do you use to specify the default button for a top-level container such as a `JFrame` or `JDialog`?

> 4. Which method do you use to enable and disable components such as `JButton`s? What class is it defined in?

> 5. a. Which Swing components use `ListSelectionModel`? [Hint: The “Use” link at the top of the specification for each interface and class takes you to a page showing where in the API that interface or class is referenced.]

> > b. Do those components use any other models to handle other aspects of the components’ state? If so, list the other models’ types.

> 6. Which type of model holds a text component’s content?

### Exercises

> 1. Implement a program with a GUI that looks like the one shown below. Put the main method in a class named `MyDemo1`.

> 2. Make a copy of `MyDemo1.java` named `MyDemo2.java`. Add a menu bar to `MyDemo2`.

> 3. Copy `MyDemo1.java` to `MyDemo3.java`. Add a button (`JButton`) to `MyDemo3.java`. Make it the default button.

Check your answers.

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