16.3.4. Creating a Simple Swing App

Try these first

1. 1.

   What does JFrame represent in a Swing application?

   Hint

   Think of it as the container for the GUI.

2. 2.

   What component is used to create a clickable button in Swing?

   Hint

   It has 'Button' in its name.

3. 3.

   What is the purpose of the JFrame in a Swing application?

   • A container for GUI components
   • A method for validating user input
   • A style sheet for the application

   Hint

   Consider what holds the buttons and labels.

4. 4.

   True or False: JButton can only perform one action on click.

   • True
   • False

   Hint

   Think about the flexibility of event handling in Swing.

5. 5.

   Extend the Swing application to include an input field (JTextField) where users can type their name. When the button is clicked, display a dialog greeting the user by name.

   Hint

   You’ll need to create a JTextField and modify the action to retrieve user input.

6. 6.

   Create a Swing application that has a button which changes the frame's background color each time it is clicked.

   Hint

   Explore using random color generation with the Color class.