Exam 14: Introduction to Swing Components

Which method overrides the default behavior for the JFrame to be positioned in the upper-left corner of the computer screen's desktop?

You cannot change the font of strings displayed in GUI components.

A ____ consists of a label positioned beside a square; you can click the square to display or remove a check mark.

If a user enters more characters than specified in a JTextField , the extra characters are deleted.

Each Swing component is a descendant of a JComponent .

A component can be made available or unavailable by passing true or false to the ____ method.

When constructing a Font object, which of the following arguments is NOT required?

Which method sets the state of the JCheckBox to true for selected or false for unselected?

Write the statement to clear out a JTextField named myText .

Swing  components are UI elements such as dialog boxes and buttons. You can usually recognize their names because they begin with ____.

Java provides you with a Font class from which you can create an object that holds typeface and size information.

import javax.swing.*; public class JFrameLook {     public static void main(String[] args)     {         ----Code here----         JFrame myFrame = new JFrame("Look and Feel");         myFrame.setSize(300, 120);         myFrame.setVisible(true);      } } In the indicated line above, write the statement to set the JFrame 's look and feel using the setDefaultLookAndFeelDecorated() method.

The Swing classes are part of a more general set of UI programming capabilities that are collectively called the ____.

Provide an example of an event-driven program.

A ____ is a Component used to trigger an action or make a selection when the user clicks it.

Which method do you use to assign a font object to a JLabel ?

Within an event-driven program, a component on which an event is generated is the ____ of the event.