import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.MessageFormat;
import java.util.Random;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

/**
 * 表格示例
 * 
 * @author jianggujin
 *
 */
public class TableDemo extends JFrame
{
  // 默认表格模型
  private DefaultTableModel model = null;
  private JTable table = null;

  private JButton addBtn = null;

  public TableDemo()
  {
   super("TableDemo");
   String[][] datas = {};
   String[] titles = { "列一", "列二" };
   model = new DefaultTableModel(datas, titles);
   table = new JTable(model);

   addBtn = new JButton("添加数据");
   addBtn.addActionListener(new ActionListener() {

     @Override
     public void actionPerformed(ActionEvent e)
     {
      model.addRow(new String[] { getRandomData(), getRandomData() });
     }
   });

   add(addBtn, BorderLayout.NORTH);
   add(new JScrollPane(table));

   setSize(400, 300);
   setLocationRelativeTo(null);
   setDefaultCloseOperation(EXIT_ON_CLOSE);
   setVisible(true);

  }

  public static void main(String[] args)
  {
   new TableDemo();
  }

  /**
  * 获得随机字符串,该方法仅用于获得随机字符串，可以忽略
  * 
  * @return
  */
  private String getRandomData()
  {
   String source = "0123456789abcdefghijklmnopqrstuvwxyz";
   int len = source.length();
   Random random = new Random(System.currentTimeMillis());
   return MessageFormat.format("{0}{0}{0}", source.charAt(random.nextInt(len)));
  }
}