Java MFixedColumnTable (提供行标题栏的表格) (三)

import java.awt.BorderLayout;
import java.util.Vector;

import javax.swing.JFrame;

/**
* Provide a fixed column in a table
*
* @author Gaowen
*
*/

public class JTable4 extends JFrame {
/**
*
*/
private static final long serialVersionUID = 805308369080023303L;

public JTable4() {
super();
setTitle("提供行标题栏的表格");
setBounds(100, 100, 500, 400);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Vector columnNameV = new Vector();
columnNameV.add("日期");
for (int i = 1; i < 21; i++) {
columnNameV.add("商品" + i);
}
Vector> tableva lueV = new Vector>();
for (int row = 1; row < 31; row++) {
Vector