How to save the text from text area back to a text file?

Question

Hi all,
Now I am doing a small panel which containts a JTextArea, this TextArea will read the content from a text file, then display the content of the text file on the TextArea itself.
My idea is, allow the user to modify the content in the textarea (I set it Editable=true;), then save it. After the user press the save button, the content in the text file will be updated accordng to the user;s modification on TextArea.
I had done the displaying part by using JavaI/O (BufferReader), now any expert here know how to update the TextArea content back to the text file itself? PLease teach me, THANKS !!!

Answer 1

NOw I had manage to clear out the error, but now the problem is when I click on the 'save' button, this function clear out the entire text file for me !!!
The code are as below:
       if(e.getSource()== vButtons[0])
          try{
           String str;
           String Ky = tArea.getText();
           BufferedWriter buffWrite=null;
           BufferedWriter in1 = new BufferedWriter(new FileWriter("Keyword.txt"));
                    buffWrite.write(Ky);
                buffWrite.flush();
                    buffWrite.close();
                in1.close();
          catch (IOException ex) {
          ex.printStackTrace();
        if(e.getSource()== vButtons[1])
              new panel();
              dispose();
         if(e.getSource()== vButtons[2])
            System.exit(0);           
    }     Please tell me how to save the TextArea to the text file, THANKS !!!