java - java中组合框的自动刷新

Question

大家好，这里只需要一点帮助:

            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));
            }

所以我想要做的但不知道如何根据动态模式下第一个组合框的选定项目刷新第二个组合框，但正如你们也可以看到的，我不知道欢迎提出任何建议

Answer 1

将 ActionListener 添加到您的第一个 JComboBox。然后添加用于更新该代码内第二个组合框的逻辑。