Exam 14: Introduction to Swing Components

How are computer programs more user friendly when they contain GUI components? How does Java address GUI components?

What is the immediate parent class of JTextField ?

Write the statement to create a JLabel named welcome that holds the words "Welcome Home".

How can you customize the appearance of a JFrame ?

The ActionListener interface contains the ____ method specification.

Create the statements to construct two JFrame s. One JFrame should be declared as welcomeFrame and have the title "Welcome", and the second JFrame should be declared as noTitleFrame and have no title.

Which statements create a JLabel that holds the words "Happy birthday"  and adds the greeting to a JFrame object named aGreeting ?

Write the statement to provide a JTextField object named myInfo that allows enough room for a user to enter 15 characters.

The default behavior of a JFrame is to use the border layout format, which divides a container into regions.

The ____ responds to keyboard events.

What class is the immediate parent of JFrame ?

The ____ responds to keyboard focus events.

How do you modify whether or not a JTextField can be edited?

Which method do you use to change the state of a JCheckBox ?

import javax.swing.*; import java.awt.*; public class JFrame4 {    public static void main(String[] args)    {       final int FRAME_WIDTH = 250;       final int FRAME_HEIGHT = 100;       -----Code here-----       JFrame aFrame = new JFrame("Fourth frame");       aFrame.setSize(FRAME_WIDTH, FRAME_HEIGHT);             aFrame.setVisible(true);       aFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);       JLabel greeting = new JLabel("Good day");       -----Code here-----       aFrame.add(greeting);    } } In the first indicated line, write the statement to create a Font object named myLook with a typeface of Times New Roman, italic, and 30-point size. In the second indicated line, create the statement to apply myLook to the greeting JLabel .

Write the code to build a JComboBox named sideDish with no arguments. Then, create the addItem() methods to provide options for "Fries", "Salad", and "Fruit".