import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.TransferHandler;
public class Main {
public static void main(String[] argv) throws Exception {
JLabel label = new JLabel("Label Text");
final String propertyName = "text";
label.setTransferHandler(new TransferHandler(propertyName));
label.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent evt) {
JComponent comp = (JComponent) evt.getSource();
TransferHandler th = comp.getTransferHandler();
th.exportAsDrag(comp, evt, TransferHandler.COPY);
}
});
}
}