我有一个数组,我填充了按钮,我想要一个单独的按钮,以便在单击时更改其文本.
for (int i = 0; i<4; i++)
{
button[i] = new JButton ("Add");
button[i].addActionListener(this);
box[i] = new JComboBox();
foodOptions.add(box[i]);
foodOptions.add(button[i]);
}
public void actionPerformed (ActionEvent e)
{
button[this].setText("I've been clicked!");
}
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由于类型不兼容,电流不起作用,哪种格式合适?