White space is significant

• White space is significant in XML and therefore in JDOM.

  import org.jdom.*;
  import org.jdom.output.XMLOutputter;
  import java.io.IOException;
  
  
  public class PrettyHelloJDOM {
  
    public static void main(String[] args) {
     
      Element root = new Element("GREETING");
      	
      root.setText("\n  Hello JDOM!\n");
           
      Document doc = new Document(root);      
      
      // At this point the document only exists in memory.
      // We still need to serialize it
      XMLOutputter outputter = new XMLOutputter();
      try {
        outputter.output(doc, System.out);       
      }
      catch (IOException e) {
        System.err.println(e);
      }
  
    }
  
  }
  

• If white space is not significant in your application, you can instruct the outputter to clean it up for you.