Hi.

I write a piece of code to highlight word in the TextEditorPane,according to
http://java.sun.com/docs/books/tutorial/uiswing/components/text.html

Here is my code.
...

   String keyword[]={"word","word1"};
    Document doc = jTextPane.getDocument();
   int beginindex = 0;
   String str = doc.getText(0, doc.getLength());
   for (int i = 0; i < keyword.length; i++) {
       for (int j = 0; j < str.length(); j++) {
         beginindex = str.indexOf(keyword[i], j);// locate the keyword

         if ( -1 != beginindex) {// if keyword exist

           doc.remove(beginindex, keyword[i].length());// remove the
keyword from the doc

           /*
               problem is here.
               I remove the keyword from the doc(Document Object).
               And insert the keyword with highlight style to the doc.
               It takes a lot of time to do this.(It makes my application
slow)

               Also,
               if the content in the doc is too long, this piece of code
will cause overflow.
               (because the limitation of int is 65535)
               Re:Is there any good solution to do this?
           */
           doc.insertString(beginindex, keyword[i],
                            jTextPane.getStyle(this._s_light_keyword));//
add the style to the keyword and insert it to its original position
           j = beginindex + keyword[i].length();
         }
       }
    }
...

Thank you for you help.