相关疑难解决方法(0)

我已经尝试了下面的代码,它适用于鼠标事件,但当我使用键事件,即任何按钮上的ENTER键,而不是显示结果.

Alert alert = new Alert(AlertType.CONFIRMATION);
alert.setTitle(null);
alert.setHeaderText(null);
alert.setGraphic(null);
alert.setContentText("Choose your option.");

ButtonType buttonTypeOne = new ButtonType("One");
ButtonType buttonTypeTwo = new ButtonType("Two");
ButtonType buttonTypeThree = new ButtonType("Three");

alert.getButtonTypes().setAll(buttonTypeOne, buttonTypeTwo, buttonTypeThree);

Optional<ButtonType> result = alert.showAndWait();
if (result.get() == buttonTypeOne) {
     System.out.println("One");
} else if (result.get() == buttonTypeTwo) {
     System.out.println("Two");
} else if (result.get() == buttonTypeThree) {
     System.out.println("Three");
}