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Java Programming Code Examples

Java > Java AWT Code Examples

Demonstrating CardLayout

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Demonstrating CardLayout import javax.swing.*; import java.awt.*; import java.awt.event.*; public class CardDeck extends JFrame implements ActionListener { private CardLayout cardManager; private JPanel deck; private JButton controls[]; private String names[] = { "First card", "Next card", "Previous card", "Last card" }; public CardDeck() { super( "CardLayout " ); Container c = getContentPane(); // create the JPanel with CardLayout deck = new JPanel(); cardManager = new CardLayout(); deck.setLayout( cardManager ); // set up card1 and add it to JPanel deck JLabel label1 = new JLabel( "card one", SwingConstants.CENTER ); JPanel card1 = new JPanel(); card1.add( label1 ); deck.add( card1, label1.getText() ); // add card to deck // set up card2 and add it to JPanel deck JLabel label2 = new JLabel( "card two", SwingConstants.CENTER ); JPanel card2 = new JPanel(); card2.setBackground( Color.yellow ); card2.add( label2 ); deck.add( card2, label2.getText() ); // add card to deck // set up card3 and add it to JPanel deck JLabel label3 = new JLabel( "card three" ); JPanel card3 = new JPanel(); card3.setLayout( new BorderLayout() ); card3.add( new JButton( "North" ), BorderLayout.NORTH ); card3.add( new JButton( "West" ), BorderLayout.WEST ); card3.add( new JButton( "East" ), BorderLayout.EAST ); card3.add( new JButton( "South" ), BorderLayout.SOUTH ); card3.add( label3, BorderLayout.CENTER ); deck.add( card3, label3.getText() ); // add card to deck // create and layout buttons that will control deck JPanel buttons = new JPanel(); buttons.setLayout( new GridLayout( 2, 2 ) ); controls = new JButton[ names.length ]; for ( int i = 0; i < controls.length; i++ ) { controls[ i ] = new JButton( names[ i ] ); controls[ i ].addActionListener( this ); buttons.add( controls[ i ] ); } // add JPanel deck and JPanel buttons to the applet c.add( buttons, BorderLayout.WEST ); c.add( deck, BorderLayout.EAST ); setSize( 450, 200 ); show(); } public void actionPerformed( ActionEvent e ) { if ( e.getSource() == controls[ 0 ] ) cardManager.first( deck ); // show first card else if ( e.getSource() == controls[ 1 ] ) cardManager.next( deck ); // show next card else if ( e.getSource() == controls[ 2 ] ) cardManager.previous( deck ); // show previous card else if ( e.getSource() == controls[ 3 ] ) cardManager.last( deck ); // show last card } public static void main( String args[] ) { CardDeck cardDeckDemo = new CardDeck(); cardDeckDemo.addWindowListener( new WindowAdapter() { public void windowClosing( WindowEvent e ) { System.exit( 0 ); } } ); } }