JTable - 用户输入的组合框

Question

通过许多教程，我终于达到了可以用表格（JFrame）做很多事情的地步，但是我现在有2个JCombo盒子。我想只有1（最后一个），第一列应该只是用户输入..我怎么能有效地改变这个？ 这是整个代码： https://pastebin.com/XR3Pgqij

只是一个片段：

// Create a combo box for season
    JComboBox jcboSeason = new JComboBox();
    jcboSeason.addItem("Spring");
    jcboSeason.addItem("Summer");
    jcboSeason.addItem("Autumn");
    jcboSeason.addItem("Winter");

    // Set combo box as the editor for the season column
    TableColumn seasonColumn = myJTable.getColumn("Trash");
    seasonColumn.setCellEditor(
    new DefaultCellEditor(jcboSeason));

    // Create a combo box for sport
    JComboBox jcboSport = new JComboBox();
    jcboSport.addItem("n.v.t.");
    jcboSport.addItem("1");
    jcboSport.addItem("2");
    jcboSport.addItem("3");

    // Set combo box as the editor for the sport column
    TableColumn sportColumn = myJTable.getColumn("Debiteurennummer");
    sportColumn.setCellEditor(
    new DefaultCellEditor(jcboSport));

}