자바 질문드립니다. JScrollPane

		public void actionPerformed(ActionEvent e){
			if(e.getSource() == ch_bt) {
 
				try {
				soc = new Socket(ia, 12345);
				out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(soc.getOutputStream())));
				in = new BufferedReader(new InputStreamReader(System.in));
				} catch(Exception ee){}
				String st1 = nick.getText().trim();
				String str = ch.getText().trim();
				vector.add(st1 + ":" + str+ "\n");
				list.updateUI();
				out.println(st1 + ":" + str + "\n");
				out.flush();
				out.close();
	//			jsp.getVerticalScrollBar().setValue(jsp.getVerticalScrollBar().getMaximum()); //스크롤 자동으로 내리기
 
			}