print('Starting swing...')

// Import the Swing GUI components and a few other classes

importPackage(javax.swing);

importClass(javax.swing.border.EmptyBorder);

importClass(java.awt.event.ActionListener);

importClass(java.net.URL);

importClass(java.io.FileOutputStream);

importClass(java.lang.Thread);

// Create some GUI widgets

var frame = new JFrame("Rhino URL Fetcher"); // The application window

var urlfield = new JTextField(30); // URL entry field

var button = new JButton("Download"); // Button to start download

var filechooser = new JFileChooser(); // A file selection dialog

var row = Box.createHorizontalBox(); // A box for field and button

var col = Box.createVerticalBox(); // For the row & progress bars

var padding = new EmptyBorder(3,3,3,3); // Padding for rows

// Put them all together and display the GUI

row.add(urlfield); // Input field goes in the row

row.add(button); // Button goes in the row

col.add(row); // Row goes in the column

frame.add(col); // Column goes in the frame

row.setBorder(padding); // Add some padding to the row

frame.pack(); // Set to minimum size

frame.visible = true; // Make the window visible

while (true){

Thread.sleep(5000);

}