Exam 17: Applets, Images, and Sound

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Match each term with the correct statement below. -A simple language used to create Web pages for the Internet

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There are four methods inherited from JApplet that make up the life cycle of an applet.

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Match each term with the correct statement below. -A little application

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Use the ____ applet method to perform initialization tasks, such as setting variables to initial values or placing applet components on the screen.

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A(n) ___________________ is a program that is called within another application-often a Web browser.

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Explain lossless data compression and the image formats with which it is used.

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Applets can delete, read, or create files on the user's system.

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Write the statement to retrieve and play the myTune.au sound file that will be stored in the same place as the applet.

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It is common practice for programmers to write their own stop() and destroy() methods.

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The ____ API allows you to add audio and video media to an application.

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Match each term with the correct statement below. -Describes the use of sound, images, graphics, and video in computer programs

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arrowPicture.paintIcon(this, g, 150, 0); The statement above is used to display the arrowPicture ImageIcon using the paintIcon() method. Describe the four arguments that are used in this method.

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If the JApplet class was not already written, you would have to write more than ____ methods to give your JApplet all the capabilities of the built-in JApplet class.

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<html> ____________________ </object> </html> Using the HTML code above, write the statement to run a JApplet named JHello. The applet will be 450 pixels wide by 150 pixels tall.

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What package contains the JApplet class?

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You save applets with a(n) ____ file extension.

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The tag that begins every HTML document is ____.

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The init() method is the first method called in any applet. Write the code for the init() method header and explain the purpose of the init() method.

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import javax.swing.*; import java.awt.*; public class JHello extends JApplet { JLabel greeting = new JLabel("Hello. Who are you?"); public void init() { add(greeting); } } The above code displays an applet with a JLabel added without a specified BorderLayout region. Describe how the JLabel will occupy the JApplet surface.

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What is the parent class of JApplet?

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