java中combobox的swing自动刷新

Question

大家好，这里需要一些帮助：

            JComboBox comboBox = new JComboBox();
        comboBox.setModel(new DefaultComboBoxModel(new String[] {"Select", "Single", "Twin", "Double", "Suit", "Conference"}));


        String[] single = d.getAvaSinglelist().toArray(new String[d.getAvaSinglelist().size()]);
        String[] Dbroon = d.getAvaDoublelist().toArray(new String[d.getAvaDoublelist().size()]);
        String[] Twin = d.getAvaTwinlist().toArray(new String[d.getAvaTwinlist().size()]);
        String[] Suit = d.getAvaSuitslist().toArray(new String[d.getAvaSuitslist().size()]);
        String[] conf = d.getAvaConferencelist().toArray(new String[d.getAvaConferencelist().size()]);
        JComboBox comboBox_1 = new JComboBox();

            if(comboBox.getSelectedItem().equals("Single")){
                comboBox_1.setModel(new DefaultComboBoxModel(single));
            }

            if(comboBox.getSelectedItem().equals("Twin")){
                comboBox_1.setModel(new DefaultComboBoxModel(Dbroon));
            }
            if(comboBox.getSelectedItem().equals("Double")){
                comboBox_1.setModel(new DefaultComboBoxModel(Twin));
            }
            if(comboBox.getSelectedItem().equals("Suit")){
                comboBox_1.setModel(new DefaultComboBoxModel(Suit));
            }
            if(comboBox.getSelectedItem().equals("Conference")){
                comboBox_1.setModel(new DefaultComboBoxModel(conf));
            }

所以我想做的是，不知道如何在动态模式下根据第一个组合框的选定项刷新第二个组合框，但正如你们所看到的，我也不知道 每一个提示都是受欢迎的

Answer 1

在第一个JComboBox中添加一个ActionListener。然后在代码中添加更新第二个组合框的逻辑