来自按钮的JavaFX输入

我正在使用javaFX创建一个简单的ATM机GUI，但我似乎不知道如何从按钮获取输入。例如，我创建了一个虚拟数字键盘，但我不知道如何从单击的按钮获取输入

public static void displayNumbers() {
    Stage window2 = new Stage();
    GridPane grid = new GridPane();

    window2.setTitle("Enter Value");

    Button one = new Button("1");
    Button two = new Button("2");
    Button three = new Button("3");
    Button four = new Button("4");
    Button five = new Button("5");
    Button six = new Button("6");
    Button seven = new Button("7");
    Button eight = new Button("8");
    Button nine = new Button("9");
    Button zero = new Button("0");
    Button enterButton = new Button("Enter");

    grid.add(one, 0, 0);
    grid.add(two, 1, 0);
    grid.add(three, 2, 0);
    grid.add(four, 0, 1);
    grid.add(five, 1, 1);
    grid.add(six, 2, 1);
    grid.add(seven, 0, 2);
    grid.add(eight, 1, 2);
    grid.add(nine, 2, 2);
    grid.add(zero, 1, 3);
    grid.add(enterButton, 2, 4);
}

要使按钮在JavaFX中执行某些操作，需要添加EventHandler。例如，让我们告诉按钮一将某些内容打印到控制台：

one.setOnAction(new EventHandler<ActionEvent>() {
    @Override
    public void handle(ActionEvent event) {
        System.out.println("You just clicked Button #1!");
    }
});

如果单击按钮时需要执行多行代码，只需使用代码块即可：

one.setOnAction(event -> {
    // Do lots of things
});

one.setOnAction(event -> {
    // Do lots of things
});