title: Java drag and drop doesnt work
body: <p>I'm trying Java drag and drop action. Action works by mobilizing the path to the image that I wanted to portray subsequently label, but are not plotted, can someone please help?</p>
  
  <pre><code>class MyDragDropListener implements DropTargetListener {
  
      public void drop(DropTargetDropEvent event) {
  
          // Accept copy drops
          event.acceptDrop(DnDConstants.ACTION_COPY);
  
          // Get the transfer which can provide the dropped item data
          Transferable transferable = event.getTransferable();
  
          // Get the data formats of the dropped item
          DataFlavor[] flavors = transferable.getTransferDataFlavors();
  
          // Loop through the flavors
          for (DataFlavor flavor : flavors) {
  
              try {
  
                  // If the drop items are files
                  if (flavor.isFlavorJavaFileListType()) {
  
  
                      //       List files = (List) transferable.getTransferData(flavor);
  
                      Object f = transferable.getTransferData(flavor);
                      // Loop them through
                      //   for (File file : files) {
  
                      // Print out the file path
  //                        System.out.println("File path is '" + f.getPath() + "'.");
  
                      String cesta = f.toString();
                      String typ = "";
                      String cesta2 = "";
                      for (int i = 1; i &lt; cesta.length() - 1; i++) {
                          if (cesta.charAt(i) == '\\') {
                              cesta2 = cesta2 + '/';
                          } else {
                              cesta2 = cesta2 + cesta.charAt(i);
                          }
                      }
                      for (int i = cesta2.length() - 1; i &gt; 0; i--) {
                          if (cesta2.charAt(i) == '.') {
                              break;
                          }
                          typ = typ + cesta2.charAt(i);
  
                      }
                      typ = new StringBuilder(typ).reverse().toString().toLowerCase();
  
  
                      MojeOkno mo = new MojeOkno();
                      // Inform that the drop is complete
                      mo.VlozObrazekDoLabelu(cesta2);
                      System.out.println("METODA PROBEHLA");
  
                  }
  
              } catch (Exception e) {
  
                  // Print out the error stack
                  e.printStackTrace();
  
              }
          }
  
          event.dropComplete(true);
  
      }
  
      public void dragEnter(DropTargetDragEvent event) {
      }
  
      public void dragExit(DropTargetEvent event) {
      }
  
      public void dragOver(DropTargetDragEvent event) {
      }
  
      public void dropActionChanged(DropTargetDragEvent event) {
      }
  }
  
  
  
   public void VlozObrazekDoLabelu(String Mojecesta) {
  
          System.out.println("Cesta k obrazku: " + Mojecesta);
  
          try {
  
              img = ImageIO.read(new File(Mojecesta));
  
  
              Graphics2D g = (Graphics2D) PanelProObrazek_jPanel1.getGraphics();
              g.drawImage(img, 3, 3, PanelProObrazek_jPanel1.getWidth() - 6, PanelProObrazek_jPanel1.getHeight() - 6, this);
              System.out.println("Dostal jsem se do try");
  
          } catch (Exception e) {
              System.out.println("CHYBA");
  
          }
  
      }
  </code></pre>
  
  <p>Greetings from Czech Republic.</p>