TextInputDialog

TextInputDialog 允许用户输入单个 String。

TextInputDialog dialog = new TextInputDialog("42");
dialog.setHeaderText("Input your favourite int.");
dialog.setTitle("Favourite number?");
dialog.setContentText("Your favourite int: ");

Optional<String> result = dialog.showAndWait();

String s = result.map(r -> {
    try {
        Integer n = Integer.valueOf(r);
        return MessageFormat.format("Nice! I like {0} too!", n);
    } catch (NumberFormatException ex) {
        return MessageFormat.format("Unfortunately \"{0}\" is not a int!", r);
    }
}).orElse("You really don't want to tell me, huh?");

System.out.println(s);