Question

所以，我想要的是，当选择JList项时，运行另一部分代码。但我的问题是，如何为特定的MouseListeners项实施JList？

这是我的代码：

public void launchFrame() {
        String selection1 = "";
        String[]mainContents = {"Vehicles","Bikes/Bicycles","Boats","Houses","Businesses","Objects","Jobs","Ranks","Licenses"};
        String[]selectionVehicles = {};
        String[]selectionBikesBicycles = {};
        String[]selectionBoats = {};
        String[]selectionHouses = {};
        String[]selectionBusinesses = {};
        String[]selectionObjects = {};
        String[]selectionJobs = {};
        String[]selectionRanks = {};
        String[]selectionLicenses = {};
        JFrame f = new JFrame("MTG SAMP Server Reference");
        JList listAll = new JList(mainContents);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
        f.pack();
        f.setSize(1200, 800);
        f.setLocationRelativeTo(null);
        f.add(listAll);
        listAll.setSize(250, 250);
        listAll.setLocation(50, 50);
        switch (selection1) {
            case "Vehicles":
                JList listVehicles = new JList(mainContents);
                f.add(listVehicles);
                listVehicles.setSize(250, 250);
                listVehicles.setLocation(350, 50);
                f.repaint();
                f.revalidate();
                break;
            case "Bikes/Bicycles":
                JList listBikesBicycles = new JList(mainContents);
                f.add(listBikesBicycles);
                listBikesBicycles.setSize(250, 250);
                listBikesBicycles.setLocation(350, 50);
                f.repaint();
                f.revalidate();
                break;
            case "Boats":
                JList listBoats = new JList(mainContents);
                f.add(listBoats);
                listBoats.setSize(250, 250);
                listBoats.setLocation(350, 50);
                f.repaint();
                f.revalidate();
                break;
            case "Houses":
                JList listHouses = new JList(mainContents);
                f.add(listHouses);
                listHouses.setSize(250, 250);
                listHouses.setLocation(350, 50);
                f.repaint();
                f.revalidate();
                break;
            case "Businesses":
                JList listBusinesses = new JList(mainContents);
                f.add(listBusinesses);
                listBusinesses.setSize(250, 250);
                listBusinesses.setLocation(350, 50);
                f.repaint();
                f.revalidate();
                break;
            case "Objects":
                JList listObjects = new JList(mainContents);
                f.add(listObjects);
                listObjects.setSize(250, 250);
                listObjects.setLocation(350, 50);
                f.repaint();
                f.revalidate();
                break;
            case "Jobs":
                JList listJobs = new JList(mainContents);
                f.add(listJobs);
                listJobs.setSize(250, 250);
                listJobs.setLocation(350, 50);
                f.repaint();
                f.revalidate();
                break;
            case "Ranks":
                JList listRanks = new JList(mainContents);
                f.add(listRanks);
                listRanks.setSize(250, 250);
                listRanks.setLocation(350, 50);
                f.repaint();
                f.revalidate();
                break;
            case "Licenses":
                JList listLicenses = new JList(mainContents);
                f.add(listLicenses);
                listLicenses.setSize(250, 250);
                listLicenses.setLocation(350, 50);
                f.repaint();
                f.revalidate();
                break;
        }
            Container contentPaneMain = f.getContentPane();
            contentPaneMain.add(new MTGSAMPServerReference());
        }

如何将MouseListeners添加到JList项目，“车辆”，“自行车/自行车”，“船只”，“房屋”，“商家”，“物品”，“工作“，”排名“和”许可“？

Answer 1

如果您希望在选择更改时发生某些事情，则不需要MouseListener，而是ListSelectionListener。它不仅是正确的抽象，而是记住选择可以在不使用鼠标的情况下改变。现在大多数电脑都有键盘。

Swing tutorial中描述了如何使用它。

在收听者中，获取所选元素，并采取相应行动。

如何将MouseListeners添加到JList项目？

1 个答案: