Exam 14: Applets and More

A mouse motion listener class can respond to:

An applet using a Swing GUI is extended from this class.

What does the tag <p /> cause to happen?

HTML describes the content and layout of a Web page, and creates links to other files and Web pages, but does not have sophisticated abilities such as performing math calculations and interacting with the user.

Which of the following sound file formats does Java not support?

Which of the following will load the applet, TestApplet?

In the following code that uses a Swing GUI, which line has an error? 1 public class TestApplet extends Applet 2 { 3 public void init() 4 { 5 JLabel label = new JLabel("Test label"); 6 setLayout(new FlowLayout()); 7 add(label); 8 } 9 }

When someone visits a Web page containing a Java applet:

These are Java programs that are usually part of a Web site.

If a frame component is 300 pixels wide and 200 pixels high, the upper, right-hand corner has (X, Y) coordinates of:

What will happen if you use instead of in an HTML document?

Look at the following applet code: 1 import javax.swing.*; 2 import java.awt.*; 3 public class GraphicsTest extends JApplet 4 { 5 public void init() 6 { 7 getContentPane().setBackground(Color.WHITE); 8 } 9 public void paint(Graphics g) 10 { 11 int[] xCoords = {20, 20, 60, 100, 140, 140, 100, 60}; 12 int[] ycoords = {20, 100, 140, 140, 100, 60, 20, 20}; 13 super.paint(g); 14 g.setColor(Color.YELLOW); 15 g.fillPolygon(xCoords, yCoords, 8); 16 g.setColor(color.BLACK); 17 g.setFont(new Font("SansSerif", Font.BOLD, 35)); 18 g.drawString("SLOW", 35, 95); 19 } 20 } How many vertices does the polygon have?

One way of viewing the results of the applet which is invoked in the HTML document TestApplet.html is to enter the following at the command prompt.

An applet does not have to be on a Web server in order to be executed.

Some browsers do not directly support the Swing classes of applets.

The ________ object is responsible for drawing the entire applet window.

What does the HTML tag <hr /> cause to happen?

Hypertext can contain:

Applet restrictions are:

Look at the following applet code: 1 import javax.swing.*; 2 import java.awt.*; 3 public class GraphicsTest extends JApplet 4 { 5 public void init() 6 { 7 getContentPane().setBackground(Color.WHITE); 8 } 9 public void paint(Graphics g) 10 { 11 int[] xCoords = {20, 20, 60, 100, 140, 140, 100, 60}; 12 int[] ycoords = {20, 100, 140, 140, 100, 60, 20, 20}; 13 super.paint(g); 14 g.setColor(Color.YELLOW); 15 g.fillPolygon(xCoords, yCoords, 8); 16 g.setColor(color.BLACK); 17 g.setFont(new Font("SansSerif", Font.BOLD, 35)); 18 g.drawString("SLOW", 35, 95); 19 } 20 } What is the color of the polygon?