Communicating with the System Clipboard

 
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class ClipText {
  public static void main(String args[]) {

    JFrame frame = new JFrame();
    Container contentPane = frame.getContentPane();

    final Clipboard clipboard = frame.getToolkit().getSystemClipboard();

    final JTextArea jt = new JTextArea();

    JScrollPane pane = new JScrollPane(jt);
    contentPane.add(pane, BorderLayout.CENTER);

    JButton copy = new JButton("Copy");
    copy.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        String selection = jt.getSelectedText();
        StringSelection data = new StringSelection(selection);
        clipboard.setContents(data, data);
      }
    });

    JButton paste = new JButton("Paste");
    paste.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent actionEvent) {
        Transferable clipData = clipboard.getContents(clipboard);
        if (clipData != null) {
          try {
            if (clipData
                .isDataFlavorSupported(DataFlavor.stringFlavor)) {
              String s = (String) (clipData
                  .getTransferData(DataFlavor.stringFlavor));
              jt.replaceSelection(s);
            }
          } catch (UnsupportedFlavorException ufe) {
            System.err.println("Unsupported flavor: " + ufe);
          } catch (IOException ufe) {
            System.err.println("Unable to get data: " + ufe);
          }
        }
      }
    });
    JPanel p = new JPanel();
    p.add(copy);
    p.add(paste);
    contentPane.add(p, BorderLayout.SOUTH);
    frame.setSize(300, 300);
    frame.show();
  }
}

Related examples in the same category

1.	Using the clipboard
2.	Sending Image Objects through the Clipboard
3.	Placing text on the computer clipboard
4.	Getting data from the computer clipboard
5.	Get string value from clipboard
6.	Write a string to the system clipboard
7.	Getting and Setting an Image on the System Clipboard
8.	Setting an image on the clipboard with a custom Transferable object to hold the image
9.	Determining When an Item Is No Longer on the System Clipboard
10.	implements ClipboardOwner
11.	Copying data to system clipboard
12.	Taken from the Sun documentation on Clipboard API

Communicating with the System Clipboard : Clip Board « Development Class « Java

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