Question

Which class implements HyperlinkListener interface? a. JTextArea b. JSlider c. JEditorPane d. None of the above

Short answer

c. JEditorPane

Step-by-step solution

Understand the HyperlinkListener Interface

The HyperlinkListener interface is used for receiving notification of any URL hyperlink updates, such as a hyperlink being clicked or updated.

Review JTextArea

JTextArea is used for displaying and editing multiple lines of plain text. It doesn't generally involve hyperlinks. Therefore, JTextArea does not implement HyperlinkListener.

Review JSlider

JSlider is a component for selecting a value from a range of values by sliding a knob. It has no handling for hyperlinks, so JSlider does not implement HyperlinkListener.

Review JEditorPane

JEditorPane is a text component capable of handling different types of content including HTML. It can render hyperlinks, so it implements HyperlinkListener to manage hyperlink events.

Review the Option 'None of the Above'

Since JEditorPane implements HyperlinkListener interface, the option 'None of the Above' is incorrect.

Conclusion

After reviewing all the given options, the correct choice is JEditorPane. It can handle HTML content and manage hyperlinks through HyperlinkListener.

Key concepts

JEditorPane

JEditorPane is a versatile component in Java Swing. You can use it to display and edit various types of content such as plain text, HTML, and RTF. When dealing with HTML content, JEditorPane has built-in support for interpreting hyperlinked text. This lets it handle hyperlinks effectively.
For hyperlink management, JEditorPane implements the HyperlinkListener interface. This interface gets notified whenever a hyperlink is clicked or updated in the JEditorPane. By implementing this interface, you can define custom behaviors for different hyperlink events.
Using JEditorPane can be particularly useful when you need a powerful component to render web-like content in your GUI applications. This means you can easily integrate rich, interactive text elements into your Swing applications.

Java Swing Components

Java Swing is a GUI toolkit that provides a rich set of components for building desktop applications. These components include various elements like buttons, text fields, check boxes, and sliders. They make it simple to build complex user interfaces.
One of the notable features of Swing components is their flexibility and ease of use. They are lightweight and can be customized to a greater extent compared to other GUI toolkits.
Some basic and commonly used Java Swing components include:

• |JButton: A button component that can trigger action events.
• |JTextField: A single-line text input.
• |JTextArea: An area for multi-line text input.
• |JLabel: A display area for a short text string or image.
• |JScrollPane: Provides a scrollable view of another component.
• |JEditorPane: A text component that can display various types of content, including HTML.

These components, when combined, enable the creation of rich, interactive, and user-friendly applications.

Event Handling

Event handling is an essential concept in Java Swing. It allows you to respond to user interactions with the GUI components. Events in Java can be generated by user actions such as clicking a button, typing in a text field, or selecting a checkbox.
In Java Swing, event handling is typically accomplished using event listeners. An event listener is an object that