public class HtmlUtils { 
    /** 
     * Escapes given text for placing it in the HTML body. If 
     * you need escaping for placing text in an attribut value, 
     * you should remove the escaping for the "\n" character. 
     * 
     * (c) Svetlin Nakov, 2004 - http://www.nakov.com 
     */ 
    public static String htmlEscape(String aText) { 
        if (aText == null) { 
            return ""; 
        } 
        StringBuffer escapedText = new StringBuffer(); 
        for (int i=0; i<aText.length(); i++) { 
            char ch = aText.charAt(i); 
            if (ch == '\'') 
                escapedText.append("&#39;"); 
            else if (ch == '\"') 
                escapedText.append("&#34;"); 
            else if (ch == '<') 
                escapedText.append("&lt;"); 
            else if (ch == '>') 
                escapedText.append("&gt;"); 
            else if (ch == '&') 
                escapedText.append("&amp;"); 
            else if (ch == '\n') 
                escapedText.append("<br>\n"); 
            else if (ch == ' ') 
                escapedText.append("&nbsp;"); 
            else if (ch == '\t') 
                escapedText.append("&nbsp;&nbsp;&nbsp;&nbsp;"); 
            else 
                escapedText.append(ch); 
        } 
        String result = escapedText.toString(); 
        return result; 
    } 
}