Question: a. Write an application that extends JPanel and displays a yellow smiling face on the screen. Save the file as JSmileFacePanel.java. b. Add a JButton

a. Write an application that extends JPanel and displays a yellow smiling face on the screen. Save the file as JSmileFacePanel.java.

b. Add a JButton to the JSmileFacePanel program so the smile changes to a frown and then back to a smile each time the user clicks the JButton. Save the file as JSmileFacePanel2.java.

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