相关疑难解决方法(0)

这是我的JTable代码,我打算用它来拥有ComboBox,JSpinner,JRadioButton,JTextfeiled等所有组件.

但我最终得到了这个,表头没有出现,我无法编辑列.请指出我的错误,因为我经常尝试并放弃了

import java.awt.*;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.*;
import javax.swing.table.*;

public class TableComponent extends JFrame
{   
    JTable dataTable = null;
    public int changeRow = -1, changeColumn = -1;
    public JRadioButton radioButton = new JRadioButton();

    public void init() {
        JPanel upperPanel = setMainPanel();

        super.getContentPane().removeAll();
        Container content = super.getContentPane();
        content.setLayout(new BorderLayout());
        content.add(upperPanel, BorderLayout.CENTER);
        setDefaultCloseOperation(DISPOSE_ON_CLOSE);
        setSize(800, 400);
        setVisible(true);
    }

    public static void main(String[] args) {
        TableComponent tableComponent = new TableComponent();
        tableComponent.init();
    }

    // This function set the main Panel
    private JPanel …