Java Foundation Classes and Containers

Question 1

JFC

Answer 1

Java Foundation Classes

Group of features to develop GUIs and adding graphics functionality and interactivity

Question 2

3 top-level container classes in swing API

Answer 2

JFrame
JDialog
JApplet

Question 3

Containment Hierarchy

Answer 3

Tree of components that has a top-level container as its root
Needed to display UI during runtim

Question 4

UI Components Containment Limits

Answer 4

Can only be contained once

Contained twice –> Goes with last container

Question 5

Content Pane

Answer 5

Contains visible components in that top-level container’s UI

Question 6

Standalone application with swing-based UI

Answer 6

At least one containment hierarchy with a JFrame as its root

Question 7

Application has one main window and two dialogs

Answer 7

JFrame (1) as its root

JDialog (2) as it root

Question 8

Swing-based applet

Answer 8

At least one containment hierarchy, exactly one of which is rooted by a JApplet object

Question 9

Applet that brings up a dialog

Answer 9

JApplet (1) as its root

JDialog (1) as its root