appendix letters in preface

Author: ChrisMayfield

thinkjava.tex

@@ -284,18 +284,18 @@ \section*{Appendixes}
 
 \begin{description}
 
-\item{\bf Appendix 1: Development tools}
+\item{\bf Appendix A: Development tools}
 
 The steps for compiling, running, and debugging Java code depend on the details of the development environment and operating system.
 We avoided putting these details in the main text, because they can be distracting.
 Instead, we provide this appendix with a brief introduction to DrJava -- an interactive development environment (IDE) that is helpful for beginners -- and other development tools, including Checkstyle for code quality and JUnit for testing.
 
-\item{\bf Appendix 2: Java 2D graphics}
+\item{\bf Appendix B: Java 2D graphics}
 
 Java provides libraries for working with graphics and animation, and these topics can be engaging for students.
 The libraries require object-oriented features that readers will not completely understand until after Chapter~\ref{classes}, but they can be used much earlier.
 
-\item{\bf Appendix 3: Debugging}
+\item{\bf Appendix C: Debugging}
 
 We provide debugging suggestions throughout the book, but we also collect our debugging advice in an appendix.
 We recommend that readers review this appendix several times as they work through the book.