codice:
public class StartPanel extends JFrame {
/**
* Creates new form StartPanel
*/
public StartPanel() {
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
private void initComponents() {
pulsanteTavoli = new JButton();
pulsantePrenotazioni = new JButton();
pulsanteImpostazioni = new JButton();
pulsanteUscita = new JButton();
jLabel1 = new JLabel();
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setTitle("Table Manager");
setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
setForeground(UIManager.getDefaults().getColor("EditorPane.background"));
setName("startPanel"); // NOI18N
setResizable(false);
pulsanteTavoli.setFont(new Font("DejaVu Sans", 1, 15)); // NOI18N
pulsanteTavoli.setText("Tavoli");
pulsantePrenotazioni.setFont(new Font("DejaVu Sans", 1, 15)); // NOI18N
pulsantePrenotazioni.setText("Prenotazioni");
pulsanteImpostazioni.setFont(new Font("DejaVu Sans", 1, 15)); // NOI18N
pulsanteImpostazioni.setText("Impostazioni");
pulsanteUscita.setFont(new Font("DejaVu Sans", 1, 15)); // NOI18N
pulsanteUscita.setText("Uscita");
jLabel1.setFont(new Font("DejaVu Sans", 2, 18)); // NOI18N
jLabel1.setText("Benvenuti in Table Manager");
GroupLayout layout = new GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap(80, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
.addGroup(GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(jLabel1, GroupLayout.PREFERRED_SIZE, 291, GroupLayout.PREFERRED_SIZE)
.addGap(41, 41, 41))
.addGroup(GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.CENTER)
.addComponent(pulsanteUscita, GroupLayout.PREFERRED_SIZE, 142, GroupLayout.PREFERRED_SIZE)
.addComponent(pulsanteTavoli, GroupLayout.PREFERRED_SIZE, 142, GroupLayout.PREFERRED_SIZE)
.addComponent(pulsanteImpostazioni, GroupLayout.PREFERRED_SIZE, 142, GroupLayout.PREFERRED_SIZE)
.addComponent(pulsantePrenotazioni, GroupLayout.PREFERRED_SIZE, 142, GroupLayout.PREFERRED_SIZE))
.addGap(130, 130, 130))))
);
layout.linkSize(SwingConstants.HORIZONTAL, new Component[] {pulsanteImpostazioni, pulsantePrenotazioni, pulsanteTavoli, pulsanteUscita});
layout.setVerticalGroup(
layout.createParallelGroup(GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel1, GroupLayout.PREFERRED_SIZE, 45, GroupLayout.PREFERRED_SIZE)
.addGap(37, 37, 37)
.addComponent(pulsanteTavoli, GroupLayout.PREFERRED_SIZE, 44, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
.addComponent(pulsanteImpostazioni, GroupLayout.PREFERRED_SIZE, 44, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
.addComponent(pulsantePrenotazioni, GroupLayout.PREFERRED_SIZE, 44, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
.addComponent(pulsanteUscita, GroupLayout.PREFERRED_SIZE, 44, GroupLayout.PREFERRED_SIZE)
.addContainerGap(54, Short.MAX_VALUE))
);
layout.linkSize(SwingConstants.VERTICAL, new Component[] {pulsanteImpostazioni, pulsantePrenotazioni, pulsanteTavoli, pulsanteUscita});
pack();
setLocationRelativeTo(null);
}// </editor-fold>//GEN-END:initComponents
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (UIManager.LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(StartPanel.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(StartPanel.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(StartPanel.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(StartPanel.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
EventQueue.invokeLater(new Runnable() {
public void run() {
new StartPanel().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private JLabel jLabel1;
private JButton pulsanteImpostazioni;
private JButton pulsantePrenotazioni;
private JButton pulsanteTavoli;
private JButton pulsanteUscita;
// End of variables declaration//GEN-END:variables
}
Quel layout.setHorizontalGroup a cosa serve e perché ha una marea di parametri fra parentesi?