从ActionListener获取按钮名称？

从ActionListener获取按钮名称？

保留按钮中的参考

Map

String letters[] = {"0", "a", "b", "c", "d", "e", "f"};JButton btn;int count = 0;HashMap<String,JButton> buttonCache = new HashMap<String,JButton>();for (int f=1; f < 7;f++){    for (int i=1; i < 7;i++){        btn = new JButton(letters[f]+i, cup);        mainGameWindow.add(btn[i]);        btn.addActionListener(this);        String stringCommand = Integer.toString(randomArrayNum());        btn.setActionCommand(stringCommand);        buttonMap.put(stringCommand,btn);        count++;        if(count == 18){ generateArray();        }    }}

然后，在您的中

ActionListener

，从命令中获取按钮：

public void actionPerformed(ActionEvent e) {    String command = ((JButton) e.getSource()).getActionCommand();    JButton button = buttonCache.get(command);    if (null != button) {        // do something with the button    }}

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编辑

五年后重新审视此答案，我不知道为什么我建议使用

HashMap

：P

这段代码做的完全一样，没有第三方

Map

：

String letters[] = {"0", "a", "b", "c", "d", "e", "f"};int count = 0;for (int f=1; f < 7;f++){    for (int i=1; i < 7;i++) {        String stringCommand = Integer.toString(randomArrayNum());        Button btn = new JButton(letters[f]+i, cup);        btn.setActionCommand(stringCommand);        btn.addActionListener(this);        mainGameWindow.add(btn[i]);        // NOTE : I have no idea what this is for...        count++;        if(count == 18){ generateArray();        }    }}

在

ActionListener

…

public void actionPerformed(ActionEvent e) {    JButton button = (JButton) e.getSource();    String command = button.getActionCommand();    // do something with the button    // the command may help identifying the button...}