Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Java 1.3 JSP replace string w/reg exp.

Posted on 2009-04-06
5
Medium Priority
?
757 Views
Last Modified: 2012-05-06
I need to come up with a good way to search through a string and replaceAll certain characters with another string.

If the string contains either of the following: & ' "
I need to replace all & with "and" and replace all single/double quote with "quote".

In my code below, how do I modify it so it searches for either of the 3 characters, without looping 3 times, one for each char.
String source = "mel & laura & cindy's car";
String input = "";
String pattern = "&";
 
if (source!=null)
{
        final int len = pattern.length();
        StringBuffer sb = new StringBuffer();
        int found = -1;
        int start = 0;
 
        while( (found = source.indexOf(pattern, start) ) != -1) {
            sb.append(source.substring(start, found));
            sb.append(replace);
            start = found + len;
        }
 
        sb.append(source.substring(start));
 
        input =  sb.toString();
}

Open in new window

0
Comment
Question by:galaxy573
  • 3
  • 2
5 Comments
 
LVL 92

Expert Comment

by:objects
ID: 24082227
easier to use replaceAll(), why not use that

0
 

Author Comment

by:galaxy573
ID: 24082286
Java 1.3 does not have replaceAll() unfortunately.
0
 
LVL 92

Expert Comment

by:objects
ID: 24082323
sorry didn't notice you were using 1.3.

why is looping a problem? You're already looping (for each instance of the string), so looping for all possibles strings seems ok. In fact it would seem the cleanest

for (int=0; i
0
 

Author Comment

by:galaxy573
ID: 24082606
I'm getting the syntax error:

array required but java.lang.String found

for this line:

String pattern = patterns[i];
0
 
LVL 92

Accepted Solution

by:
objects earned 2000 total points
ID: 24082618
patterns should be an array of strings

String[] patterns = new String[] {"&", "\""};

you'll also need an array of replacements

String[] replaces = new String[] {"and", "quote"};

which you will use :

            sb.append(replaces[i]);

0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

By the end of 1980s, object oriented programming using languages like C++, Simula69 and ObjectPascal gained momentum. It looked like programmers finally found the perfect language. C++ successfully combined the object oriented principles of Simula w…
Introduction This article is the second of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers the basic installation and configuration of the test automation tools used by…
This tutorial will introduce the viewer to VisualVM for the Java platform application. This video explains an example program and covers the Overview, Monitor, and Heap Dump tabs.
How to fix incompatible JVM issue while installing Eclipse While installing Eclipse in windows, got one error like above and unable to proceed with the installation. This video describes how to successfully install Eclipse. How to solve incompa…
Suggested Courses

885 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question