解決如何讓JTextArea內容總顯示最後一筆

        
public void myChange(String change) {
       String tmp = jTextArea1.getText();
       tmp = tmp.concat(change + "\n\r");
       jTextArea1.setText(tmp);
       SwingUtilities.invokeLater(new Runnable() {
              public void run() {
                    jScrollPane1.getVerticalScrollBar().setValue(jScrollPane1.getVerticalScrollBar().getMaximum());
                }
            });
}