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Java Swing - 如何添加JTable到面板

jtable 【jtable】
我们想知道如何添加JTable到面板。
代码展示 运行结果 
import java.awt.Dimension;
import java.awt.event.ActionEvent;

import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

public class Main {
  public static void main(String[] args) {
    JScrollPane sPane = new JScrollPane();
    sPane.setPreferredSize(new Dimension(200, 150));
    JButton button = new JButton(new AbstractAction("Create Table") {
      public void actionPerformed(ActionEvent arg0) {
        DefaultTableModel model = new DefaultTableModel(new Integer[][] {
            { 1, 2 }, { 3, 4 } }, new String[] { "A", "B" });
        JTable table = new JTable(model);
        sPane.getViewport().add(table);
      }
    });
    JPanel panel = new JPanel();
    panel.add(sPane);
    panel.add(button);
    JOptionPane.showMessageDialog(null, panel);

  }
}