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Date: Wed, 29 Jun 2011 14:38:04 -0700
From: Patricia Shanahan <pats@acm.org>
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Subject: Re: StringBuilder Difficulties
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On 6/28/2011 5:54 PM, Gene Wirchenko wrote:
...
>       Am I missing something about StringBuilder, or is it really this
> difficult to play with?  It would make a lot more sense to me if
> StringBuilder worked more like String does.
...

The main thing you seem to be missing about StringBuilder is that it is
not a string, it is a tool for building strings.

Here is some sample code demonstrating comparing a String to the current
contents of a StringBuilder, and replacing the entire contents with a
different String.

public class StringBuilderExample {
   public static void main(String[] args) {
     StringBuilder sb = new StringBuilder();
     sb.append("aaa");
     System.out.println(sb);
     System.out.println("aaa".equals(sb.toString()));
     sb.replace(0, Integer.MAX_VALUE, "bbbbbbb");
     System.out.println(sb);
   }
}


Patricia