title: how to configure JDDE library (java dynamic data exchange) with eclipse java?
body: <p>I want to use DDE communication with java and java eclipse editor to run some simple code. 
  I imported the called library <strong>pretty-tools-JDDE-2.0.3.jar</strong> to my project but in vain - DDEClient and other DDE type not recognized.
  Here is the code :</p>
  
  <pre><code>public class Testdde {
      public static void main(String[] args) {
          DDEClient client;
          Conversation url = null;
          client = DDEClient.getInstance();
          try {
              url = client.connect("Iexplore", "WWW_OpenURL");
          } catch (DDEException e) {
              System.out.println("No running instance of Internet Explorer is found. Stopping.");
              e.printStackTrace();
              client.close();
              return;
          }
          System.out.println("Connected to Internet Explorer");
          System.out.println("Opening \"http://www.java.com/\" in a new window");
          try {
              url.request("http://www.java.com/,,0");
          } catch(DDEException e) {
              e.printStackTrace();
          }
          try {url.close();} catch (Exception ignore) {}
          client.close();
      }
  }
  </code></pre>