AWT Controls and ActionEvent Quiz

Questions and Answers

A _____ is a passive AWT control that does not generate any event.

Label

ActionEvent Class is used for which control?

None of these

List, Button, Checkbox (correct)

Menu, Label, ScrollBar

Label, Button, List

Arranges the components as a deck of cards such that only one component is visible at a time:

GridLayout

BorderLayout

FlowLayout

CardLayout (correct)

AWT components are:

Platform dependent Signup and view all the answers

Change in the state of an object is known as __________.

Event Signup and view all the answers

Event listeners are:

Interface Signup and view all the answers

In AWT, what is the purpose of the Scrollbar component?

To allow the user to select a value from a range Signup and view all the answers

In AWT, which class is used to create a window with a title bar, borders, and buttons?

Frame Signup and view all the answers

In AWT, which layout manager automatically resizes components to fill available space?

BorderLayout Signup and view all the answers

MVC architecture is ________.

Model View Controller Signup and view all the answers

The following way is used to create a frame is by creating the:

Both A & B Signup and view all the answers

The getActionCommand() method is used to retrieve:

The label text of a component Signup and view all the answers

The getSelectedIndex() method is commonly used with which AWT component?

List Signup and view all the answers

The setEnabled() method is used to:

Enable event handling for a component Signup and view all the answers

The setLayout() method is used to:

Set the layout manager for a container Signup and view all the answers

Study Notes

AWT Controls and Components

A label is a passive AWT control that does not generate any event.
The ActionEvent class is used primarily with List, Button, and Checkbox controls.
CardLayout arranges components like a deck of cards, showing only one component at a time.

Platform Dependency

AWT components are platform dependent, which means their appearance and behavior can vary across different operating systems.

Understanding Events

A change in the state of an object is referred to as an event.
Event listeners are typically implemented as interfaces in Java.

AWT Component Functions

The Scrollbar component allows users to select a value from a specified range.
The Frame class is used to create a window with a title bar, borders, and buttons.

Layout Management

FlowLayout is a layout manager that automatically resizes components to fill the available space.
The Model-View-Controller (MVC) architecture consists of the Model, View, and Controller components.

Frame Creation and Action Command

Creating a Frame can be done through inheritance or association with the Frame class.
The getActionCommand() method retrieves the label text or identifier associated with an action event.

Component Interaction

The getSelectedIndex() method is commonly used with List and ComboBox AWT components.
The setEnabled() method is used to enable or disable a component based on the passed argument.