private void pateButtonDisableorEnable() {
    new Thread() {
        public void run() {
            while (true) {
                try {
                    Thread.sleep(100);
                    String data = (String) Toolkit.getDefaultToolkit().getSystemClipboard().getData(DataFlavor.stringFlavor);
                    if (data.trim().length() != 0) {
                        jButton7.setEnabled(true);
                    } else {
                        jButton7.setEnabled(false);
                        System.out.println(data);
                    }

                } catch (InterruptedException ex) {
                    ex.printStackTrace();
                } catch (UnsupportedFlavorException ex) {
                    ex.printStackTrace();
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
            }
        }
    }.start();