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Exam 12: Overview of UML

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Question 1

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All graphics coordinates are in units of ___________________.

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A button is a type of component.

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The ____ class is an abstract class that provides the interface between the Java API and the physical device on which the image is created.

The Java API java.text contains the class ____, which can be used to format numbers either as pure numbers or as currency.

A(n) ____ is a general-purpose intermediate component that is used to organize the other components.

A primary purpose of the ____ API is to enable a programmer to develop a GUI for a Java application.

The ____________________ is the base class for all other Swing components, except the top-level containers JFrame, JDialog, JAPPlet, and JWindow.

____________________ buffering allows for flicker-free updates at the cost of additional memory.

A toolbar contains icons that can be selected by a mouse click.

____ are triggered by making a selection from a list of items.

Class ActionEvent is a subclass of the abstract class ____________________.

A(n) ____________________ is a method that is to be called when an action event occurs.

The interface EventListener has no methods. Such interfaces are known as ____.

The layout manager can be specified as an argument of the JPanel constructor, or it can be set in any Container by calling the method flowLayoutManager.

____ Layout places components in either a horizontal or vertical arrangement.

All user interfaces are displayed within a(n) ____.

A(n) ____ combines a button or editable field and a drop-down list.

JPanel cannot be used as a painting surface.

To facilitate mutual exclusion, radio buttons are placed into a(n) ____________________.

Objects of class ____ must be placed in a containment hierarchy that is rooted in one of the top-level containers.