public class table {
    public table() {
        JFrame f = new JFrame();
        Vector<Vector<Object>> va = new Vector<Vector<Object>>();
        grade gr1 = new grade("网鹏", new Integer(82), new Integer(91), new Integer(100),
                new Boolean(true));
        grade gr2 = new grade("网", new Integer(82), new Integer(91), new Integer(100), new Boolean(
                true));
        grade gr = new grade("鹏", new Integer(82), new Integer(91), new Integer(100), new Boolean(
                true));
        va.addElement(gr.toVector());
        va.addElement(gr2.toVector());
        va.addElement(gr1.toVector());
        Vector<String> ve = new Vector<String>();
        ve.add("姓名");
        ve.add("语文");
        ve.add("数学");
        ve.add("总分");
        ve.add("及格");

        JTable table = new JTable(va, ve); // 这里报错为什么啊
                                            // table.setPreferredScrollableViewportSize(new
                                            // Dimension(550,30));
        JScrollPane scrollPane = new JScrollPane(table);
        f.getContentPane().add(scrollPane, BorderLayout.CENTER);
        f.setTitle("表格测试窗口");
        f.pack();
        f.setVisible(true);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }

    public static void main(String args[]) {

        new table();

    }

}

class grade {
    String name;
    int china;
    int math;
    int all;
    boolean ok;

    public grade(String name, int china, int math, int all, boolean ok) {

        this.name = name;
        this.china = china;
        this.math = math;
        this.all = all;
        this.ok = ok;
    }
    
    public Vector<Object> toVector() {
        Vector<Object> v = new Vector<Object>();
        v.add(name);
        v.add(china);
        v.add(math);
        v.add(all);
        v.add(ok);
        return v;
    }
}