Unit-5 Questions

Event Handling

Two Event Handling Mechanisms, The Delegation Event Model, Event Classes, The Event Class, The KeyEvent Class, Sources of Events, Event Listener Interfaces, Using the Delegation Event Model, Adapter Classes, Inner Classes

1. What do you mean by an Event, Event Source, and Event Listener?

2. Explain the delegation event model and the role of the source and listeners with examples.

3. What are Adapter Classes? How can they simplify the creation of event handlers?

4. Show how keyboard events are handled with an example.

5. Show how mouse events are handled with an example.

JavaFX

Introducing JavaFX GUI Programming, Exploring JavaFX Controls

Part A: Foundational Concepts

1. Discuss the Application class and the life cycle methods (init(), start(), stop()) of a JavaFX application.

2. Explain the following core structural components of JavaFX:

   • The Stage and Scene classes

   • Nodes and the Scene Graph

   • Layouts (e.g., VBox, HBox, BorderPane)

Part B: JavaFX Controls with Examples

3. Illustrate with simple examples the use of basic JavaFX controls such as Label, Button, RadioButton, and TextField.

4. Explain and provide an example for more advanced JavaFX controls like ListView, TreeView, and ScrollPane.

Part C: Complete Application

5. Write a complete temperature conversion program that converts a temperature from Fahrenheit to Celsius. The Fahrenheit temperature should be entered from a TextField, and a Label should be used to display the converted temperature.

Web Development

Introduction to Servlets and JSP

Database Programming

JDBC and Database Connectivity