How pass a print job to a specific printer in javafx applcation?

Question

am working on an application , this application is in javafx, in this application we are taking food orders and this order we have to print using different printer, some printe

Answer 1

You can use a ChoiceDialog for that purpose to choose a Printer from the Set of printers returned by Printer.getAllPrinters:

ChoiceDialog dialog = new ChoiceDialog(Printer.getDefaultPrinter(), Printer.getAllPrinters());
dialog.setHeaderText("Choose the printer!");
dialog.setContentText("Choose a printer from available printers");
dialog.setTitle("Printer Choice");
Optional opt = dialog.showAndWait();
if (opt.isPresent()) {
    Printer printer = opt.get();
    // start printing ...
}

Of course you could use any other way to choose a single item from a list of items too, if you prefer not to use a dialog. E.g.

• ListView
• ComboBox
• TableView

BTW: the size of nodes will be 0, unless they were layouted, which could cause

double scaleX = node.getBoundsInParent().getWidth();
double scaleY = node.getBoundsInParent().getHeight();
node.getTransforms().add(new Scale(scaleX, scaleY));

to scale it to 0. For nodes not already displayed, you need to layout them yourself (see this answer: https://stackoverflow.com/a/26152904/2991525):

Group g = new Group(node);
Scene scene = new Scene(g);
g.applyCss();
g.layout();
double scaleX = node.getBoundsInParent().getWidth();
double scaleY = node.getBoundsInParent().getHeight();

But I'm not sure what you're trying to achieve with the scaling anyway... The larger the node, the greater the scaling factor is not really a reasonable thing to do, especially if the height and width differ.