xml tags verification

Hello,
I have to write a java program,which checks for proper closing of xml tag and if the tags are not closed properly,program needs to close it in correct order.
for ex: mmmm

I need to change this string to mmmm.

please help,any sample code will help me moore.

Thanks,
Smitha

Do you really need to do this, or do you just need to parse some HTML? There are already some good HTML parsers out there (you might even be able to use them to then save the parse tree as correct XHTML).

Thanks for your reply,
I need to such manipulation on string.

Any help,how can i do that?

Are you allowed to assume that the source is valid xml? If so, use an XML parser and SAX or DOM through it.
If you just go through the xml in a "linear" way, you can keep a stack of open tags and check that if the one currently closed equals the last opened.

Originally posted by Jaap Vermeer:
Are you allowed to assume that the source is valid xml?

If the tags aren't closed properly, it cannot be valid xml, I'd think...

Originally posted by smitha rajgopal:
Thanks for your reply,
I need to such manipulation on string.

Any help,how can i do that?

I'd use a HTML parser, like NekoHTML or JTidy (http://java-source.net/open-source/html-parsers) to parse the string, and then write the DOM tree back as valid XML.