Formatting or rendering via logging

Each handlers output can be configured with a formatter
Available formatter

• SimpleFormatter Generate all messages as text
  
• XMLFormatter Generates XML output for the log messages 
  

Log entries can be sent to these destinations, as either simple text or as XML :

• the console
• a file
• a stream
• memory
• a TCP socket on a remote host

class MyHtmlFormatter extends Formatter{

//this method is called for every log records
  public String format(LogRecord record)
  {
    StringBuffer buf = new StringBuffer(1000);
    //if level is greater than warning, bold the content
    if (record.getLevel().intValue() >= Level.WARNING.intValue()){
       buf.append("<b>");
       buf.append(record.getLevel());
       buf.append("</b>");
     }
   //else do something else 
   //and so on
  return buf.toString();
}