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
    • Exceptions
    • Assertions
    • Workshop: Throwing and Catching Exceptions
    • Summary
    • Q&A
    • Quiz
    • Questions
    • Activities
  • 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
  • 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

Questions

1. How many exceptions can a single catch statement handle?
   1. Only one
   2. Several different exceptions
   3. This answer intentionally left blank
2. When will the statements inside a finally section be run?
   1. After a try-catch block that has ended with an exception
   2. After a try-catch block that has ended without an exception
   3. Both
3. With all this talk about throwing and catching, what do the Texas Rangers need to do in the off-season?
   1. Get some more starting pitching
   2. Sign a left-handed power-hitting outfielder who can reach the short porch in right
   3. Bring in some new middle relievers

Answers

1. b. An Exception object in the catch statement can handle all exceptions of its own class and its subclasses.
2. b. The statement or statements in a finally section always are executed after the rest of a try-catch block, whether or not an exception has occurred.
3. a. Every answer is correct, but a. is more correct than the others, and will probably be correct for the next 30 years.

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