Hi,

Having trouble compiling the example of appending a substring on page 165.

The code:

StringBuffer buf = new StringBuffer("Hard ");
String aString = "Waxworks";
buf.append(aString, 3, 4);
System.out.println(buf);


gives a compile error 'cannot resolve symbol'

Any suggestions guys?

Thanks in advance.

http://java.sun.com/j2se/1.4.2/docs/...ingBuffer.html
at
http://java.sun.com/j2se/1.4.2/docs/api/index.html

says that no such append method exists for a StringBuffer
you should cast your String to a char array first?
and use:
append(char[] str, int offset, int len)

or first substring the String using:
substring(int beginIndex, int endIndex)

take heed:
endIndex

for a StringBuffer object you can also:
insert(int index, char[] str, int offset, int len)

note:
String as char[]

Hope that helps.
There are a lot of methods in those classes!
Best follow the book!

I will be back next week
Frans @ chapter 14

Thanks freezotic - I'll post it as an error in the book.

Alan

I got a lot of errors here, but where can I post them?
- WROX has gone bust, but Wiley will republish Ivor's Java2 coming September

I started from the link 'Contact us' from the home page, got a reply suggesting that I try this forum, so, you're the expert, freezotic!

I'll pass this correction along to the Wrox Tech Support team.

Note that you can find the errata for a book by clicking on "Book List" on the navigation bar at the top of the page, and following the links on that book's page. Or, you can just click here: http://www.wrox.com/books/errata/076...2_errata.shtml.

New errata can be submitted to Wrox Tech Support directly by choosing "Contact Technical Support" from the Contact Us page.

Also, Ivor Horton's new book coming out this Fall is a new edition of his Beginning Java book, and will cover SDK 1.5.

Hope this helps,
David Mayhew
Wiley/Wrox Press

The code can be rewritten like this:

public class testString
{
    static StringBuffer buf = new StringBuffer("Hard ");
    static String aString = "Waxworks";

    public static void main( String args[] )
    {
        // this will append whole stuff
        buf.append(aString.toCharArray(), 0,
                             aString.toCharArray().length);
            System.out.println(buf);
    }
}