填空题 某按钮的监视器方法actionPerformed1实现将文本区中的内容写入到文本文件myText.txt中。 public void actionPerformed(ActionEvent e) { try { int n = txtFld.getText2.length3; byte buffer[]=new byte[n]; buffer=txtFid.getText4.getBytes5; FileOutputStream wf=new 6 ("myText.txt"); wf. write(buffer, 0,n); 7; }catch (IOException ioe){ txtFld.setText(ioe.toString8); } } }