Sams Teach Yourself Java 2 in 24 Hours

By Rogers Cadenhead

• Table of Contents
  • Copyright
  • About the Author
  • About the Technical Editor
  • Acknowledgments
  • We Want to Hear from You!
  • Reader Services
  • Introduction
  • Hour 1. Becoming a Programmer
  • Hour 2. Writing Your First Program
  • Hour 3. Vacationing in Java
  • Hour 4. Understanding How Java Programs Work
  • Part II: Learning the Basics of Programming
  • Hour 5. Storing and Changing Information in a Program
  • Hour 6. Using Strings to Communicate
  • Hour 7. Using Conditional Tests to Make Decisions
  • Hour 8. Repeating an Action with Loops
  • Part III: Working with Information in New Ways
  • Hour 9. Storing Information with Arrays
  • Hour 10. Creating Your First Object
  • Hour 11. Describing What Your Object Is Like
  • Hour 12. Making the Most of Existing Objects
  • Part IV: Programming a Graphical User Interface
  • Hour 13. Building a Simple User Interface
  • Hour 14. Laying Out a User Interface
  • Hour 15. Responding to User Input
  • Hour 16. Building a Complex User Interface
  • Part V: Creating Multimedia Programs
  • Hour 17. Creating Interactive Web Programs
  • Hour 18. Handling Errors in a Program
  • Hour 19. Creating a Threaded Program
  • Hour 20. Reading and Writing Files
  • Part VI: Creating Multimedia Programs
  • Hour 21. Using Fonts and Color
  • Hour 22. Playing Sound Files
    • Retrieving and Using Sounds
    • Java Archives
    • Workshop: Making Your Computer Talk to You
    • Summary
    • Q&A
    • Quiz
    • Activities
  • Hour 23. Working with Graphics
  • Hour 24. Creating Animation
  • Part VII: Appendixes
  • Appendix A. Tackling New Features of Java 2 Version 1.4
  • Appendix B. Using the Java 2 Software Development Kit
  • Appendix C. Programming with the Java 2 Software Development Kit
  • Appendix D. Using Sun ONE Studio
  • Appendix E. Where to Go from Here: Java Resources
  • Appendix F. This Book's Web Site

Quiz

To see if this hour has been a resounding success, test your knowledge of Java's sound capabilities with the following questions.

Questions

1. Which of the following is not an audio format supported by Java?
   1. WAV
   2. AU
   3. DISCO
2. What's the benefit of using the getCodeBase() method to specify the location of a sound file in your applets?
   1. The sound file loads more quickly.
   2. You can move the applet to a new location on the World Wide Web without changing the program in any way.
   3. All your friends in the Java community already are doing it, so you won't be ostracized and ridiculed for being different.
3. What does URL stand for?
1. Universal Resource Locator
2. Uniform Resource Locator
3. Unexpected Radio Link

Answers

1. c. DISCO is not a valid audio format in Java. Some people might argue that it isn't a valid audio format in life, either, but you won't hear that from this author. I'm still saving clothes for the day when gold chains, Gloria Gaynor, and wide collars open to the navel make their triumphant comeback.
2. b.
3. b. Actually, a. isn't too off the mark, because URLs are sometimes referred to as Universal Resource Locators.

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