Creating Windows - Beginning Java - page 854

JFrame aWindow = new JFrame("This is the Window Title");
Toolkit theKit = aWindow.getToolkit(); // Get the
window toolkit
Dimension wndSize = theKit.getScreenSize(); // Get screen

size

// Set the position to screen center & size to half screen size
aWindow.setSize(wndSize.width/2, wndSize.height/2); // Set
window size
aWindow.setLocationRelativeTo(null); // Center
window
aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

// Create left column of radio buttons
Box left = Box.createVerticalBox();
ButtonGroup radioGroup = new ButtonGroup(); // Create

button group
JRadioButton rbutton; // Stores a

button
radioGroup.add(rbutton = new JRadioButton("Red")); // Add to

group
left.add(rbutton); // Add to Box

radioGroup.add(rbutton = new JRadioButton("Green"));
left.add(rbutton);
radioGroup.add(rbutton = new JRadioButton("Blue"));
left.add(rbutton);
radioGroup.add(rbutton = new JRadioButton("Yellow"));
left.add(rbutton);

// Create right columns of checkboxes
Box right = Box.createVerticalBox();
right.add(new JCheckBox("Dashed"));
right.add(new JCheckBox("Thick"));
right.add(new JCheckBox("Rounded"));

// Create top row to hold left and right
Box top = Box.createHorizontalBox();
top.add(left);
top.add(right);
// Create bottom row of buttons
JPanel bottomPanel = new JPanel();
Border edge = BorderFactory.createRaisedBevelBorder(); // Button
border
JButton button;
Dimension size = new Dimension(80,20);
bottomPanel.add(button = new JButton("Defaults"));
button.setBorder(edge);
button.setPreferredSize(size);
bottomPanel.add(button = new JButton("OK"));
button.setBorder(edge);
button.setPreferredSize(size);
bottomPanel.add(button = new JButton("Cancel"));
button.setBorder(edge);