DragSource.DefaultCopyDrop has the following syntax.
public static final Cursor DefaultCopyDrop
In the following code shows how to use DragSource.DefaultCopyDrop field.
/*w w w . j av a 2s . c om*/ import java.awt.BorderLayout; import java.awt.Color; import java.awt.datatransfer.DataFlavor; import java.awt.datatransfer.StringSelection; import java.awt.datatransfer.Transferable; import java.awt.datatransfer.UnsupportedFlavorException; import java.awt.dnd.DnDConstants; import java.awt.dnd.DragGestureEvent; import java.awt.dnd.DragGestureListener; import java.awt.dnd.DragSource; import java.awt.dnd.DragSourceContext; import java.awt.dnd.DragSourceDragEvent; import java.awt.dnd.DragSourceDropEvent; import java.awt.dnd.DragSourceEvent; import java.awt.dnd.DragSourceListener; import java.awt.dnd.DropTarget; import java.awt.dnd.DropTargetDragEvent; import java.awt.dnd.DropTargetDropEvent; import java.awt.dnd.DropTargetEvent; import java.awt.dnd.DropTargetListener; import java.awt.dnd.InvalidDnDOperationException; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; public class Main extends JFrame implements ActionListener, DropTargetListener { DragLabel source = new DragLabel("Drag and drop me to the following JButton", JLabel.CENTER); JButton target = new JButton(); Main(String title) { super(title); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); source.setForeground(Color.red); getContentPane().add(source, BorderLayout.NORTH); target.addActionListener(this); getContentPane().add(target, BorderLayout.SOUTH); new DropTarget(target, DnDConstants.ACTION_COPY_OR_MOVE, this); setSize(205, 100); setVisible(true); } public void actionPerformed(ActionEvent e) { JButton b = (JButton) e.getSource(); b.setText(""); source.setText("Drag and drop me to the following JButton"); } public void dragEnter(DropTargetDragEvent e) { System.out.println("Entering drop target #1"); } public void dragExit(DropTargetEvent e) { System.out.println("Exiting drop target #1"); } public void dragOver(DropTargetDragEvent e) { System.out.println("Dragging over drop target #1"); } public void drop(DropTargetDropEvent e) { System.out.println("Dropping"); try { Transferable t = e.getTransferable(); if (e.isDataFlavorSupported(DataFlavor.stringFlavor)) { e.acceptDrop(e.getDropAction()); String s; s = (String) t.getTransferData(DataFlavor.stringFlavor); target.setText(s); e.dropComplete(true); } else e.rejectDrop(); } catch (java.io.IOException e2) { } catch (UnsupportedFlavorException e2) { } } public void dropActionChanged(DropTargetDragEvent e) { System.out.println("Drop action changed #1"); } public static void main(String[] args) { new Main("Drag and Drop Demo"); } } class DragLabel extends JLabel implements DragGestureListener, DragSourceListener { private DragSource ds = DragSource.getDefaultDragSource(); public DragLabel(String s, int alignment) { super(s, alignment); int action = DnDConstants.ACTION_COPY_OR_MOVE; ds.createDefaultDragGestureRecognizer(this, action, this); } public void dragGestureRecognized(DragGestureEvent e) { try { Transferable t = new StringSelection(getText()); e.startDrag(DragSource.DefaultCopyNoDrop, t, this); } catch (InvalidDnDOperationException e2) { System.out.println(e2); } } public void dragDropEnd(DragSourceDropEvent e) { System.out.println("Drag and drop end"); if (e.getDropSuccess() == false) { System.out.println("unsuccessful"); return; } int action = e.getDropAction(); if ((action & DnDConstants.ACTION_MOVE) != 0) setText(""); } public void dragEnter(DragSourceDragEvent e) { System.out.println("Entering drop target #2"); DragSourceContext ctx = e.getDragSourceContext(); int action = e.getDropAction(); if ((action & DnDConstants.ACTION_COPY) != 0) ctx.setCursor(DragSource.DefaultCopyDrop); else ctx.setCursor(DragSource.DefaultCopyNoDrop); } public void dragExit(DragSourceEvent e) { System.out.println("Exiting drop target #2"); } public void dragOver(DragSourceDragEvent e) { System.out.println("Dragging over drop target #2"); } public void dropActionChanged(DragSourceDragEvent e) { System.out.println("Drop action changed #2"); } }