Java Swing Tutorial - Java JEditorPane(URL initialPage) Constructor

Syntax

JEditorPane(URL initialPage) constructor from JEditorPane has the following syntax.

public JEditorPane(URL initialPage)   throws IOException

Example

In the following code shows how to use JEditorPane.JEditorPane(URL initialPage) constructor.

/*  w  w w  .j  a va 2s . com*/
import java.io.IOException;
import java.net.URL;

import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
import javax.swing.text.Document;

public class Main {

  public static void main(final String args[]) {
    JFrame frame = new JFrame("EditorPane Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    try {
      JEditorPane editorPane = new JEditorPane(new URL("http://www.java2s.com"));
      editorPane.setEditable(false);

      HyperlinkListener hyperlinkListener = new ActivatedHyperlinkListener(
          editorPane);
      editorPane.addHyperlinkListener(hyperlinkListener);

      JScrollPane scrollPane = new JScrollPane(editorPane);
      frame.add(scrollPane);
    } catch (IOException e) {
      System.err.println("Unable to load: " + e);
    }

    frame.setSize(640, 480);
    frame.setVisible(true);
  }

}

class ActivatedHyperlinkListener implements HyperlinkListener {

  JEditorPane editorPane;

  public ActivatedHyperlinkListener(JEditorPane editorPane) {
    this.editorPane = editorPane;
  }

  public void hyperlinkUpdate(HyperlinkEvent hyperlinkEvent) {
    HyperlinkEvent.EventType type = hyperlinkEvent.getEventType();
    final URL url = hyperlinkEvent.getURL();
    if (type == HyperlinkEvent.EventType.ENTERED) {
      System.out.println("URL: " + url);
    } else if (type == HyperlinkEvent.EventType.ACTIVATED) {
      System.out.println("Activated");
      Document doc = editorPane.getDocument();
      try {
        editorPane.setPage(url);
      } catch (IOException ioException) {
        System.out.println("Error following link");
        editorPane.setDocument(doc);
      }
    }
  }
}