Java中利用散列表实现股票行情的查询

Java中利用散列表实现股票行情的查询(3) System.err.println("充填数据时出错: " + excpt);
} catch(NoSUChElementException excpt) {
System.err.println("无效的数据记录 " +
"in file: " + excpt);
}
}
stockInput.close();

} catch(FileNotFoundException excpt) {
System.err.println("不能发现文件: " + excpt);
return false;
} catch(IOException excpt) {
System.err.println("I/O故障: " + excpt);
return false;
}
 return true;
}

protected String getQuote(String StockID)
{
String info;

// 从Hashtable得到数据
info = (String)stockInfo.get(StockID);
if (info != null)
return info;
else
return "股票代码错误！";
}

public void paint(GraphiCS g)
{
g.drawString("股票代码"+quoteid+":" ,10,60);
g.drawString("股票名称"+"前收"+"今开"+"最高"
+"最低"+"收盘"+"交易量"+"交易金额", 10, 90);
g.drawString(quotename, 10, 120);
}

public void actionPerformed(ActionEvent ev)
{
String label = ev.getActionCommand();
if (label.equals("查询"))
{
quoteid = stockID.getText();
if(quoteid != null)
quotename = getQuote(quoteid);
else quotename = "请输入股票代码！";
repaint();
}
}
}

d:\jdk1.2\bin\appletviewer  StockQuote.html