JcomboBox Modelo Programador Java Interfaz Gráfico GUI AWT Swing 1 Swing 2

Java

JcomboBox Modelo Programador Java Interfaz Gráfico GUI AWT Swing 1 Swing 2

java.awt.*;  java.awt.event.*;  javax.swing.*;  javax.swing.event.*; public class JcomboBox1 extends JFrame {   private JLabel jLabel1 = new JLabel();   private JComboBox jComboBox1 = new JComboBox();   private JButton Pares = new JButton();     private ImageIcon ParesIcon = new ImageIcon("../../A.png");   private JButton jButton2 = new JButton();     private ImageIcon jButton2Icon = new ImageIcon("../../Apa.png");     private ImageIcon jButton2SelectedIcon = new ImageIcon("../../Ap2.png");   private JLabel jLabel2 = new JLabel();     public JcomboBox1(String title) {       super(title);     setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);     int frameWidth = 337;     int frameHeight = 338;     setSize(frameWidth, frameHeight);     Dimension d = Toolkit.getDefaultToolkit().getScreenSize();     int x = (d.width - getSize().width) / 2;     int y = (d.height - getSize().height) / 2;     setLocation(x, y);     setResizable(false);     Container cp = getContentPane();     cp.setLayout(null);             jLabel1.setBounds(8, 0, 307, 89);     jLabel1.setText("Cuadro de Listas jComboBox");     jLabel1.setFont(new Font("Gunplay 3D", Font.BOLD, 22));     jLabel1.setForeground(Color.MAGENTA);     cp.add(jLabel1);     cp.setBackground(new Color(0x4FB09D));     jComboBox1.setBounds(32, 104, 153, 25);     cp.add(jComboBox1);     Pares.setBounds(208, 120, 121, 41);     Pares.setText("Pares");     Pares.setMargin(new Insets(2, 2, 2, 2));     Pares.addActionListener(new ActionListener() {       public void actionPerformed(ActionEvent evt) {         Pares_ActionPerformed(evt);       }     });     Pares.setIcon(ParesIcon);     cp.add(Pares);     jButton2.setBounds(208, 184, 121, 41);     jButton2.setText("Impares");     jButton2.setMargin(new Insets(2, 2, 2, 2));     jButton2.addActionListener(new ActionListener() {       public void actionPerformed(ActionEvent evt) {         jButton2_ActionPerformed(evt);       }     });     jButton2.setSelectedIcon(jButton2SelectedIcon);     jButton2.setIcon(jButton2Icon);     cp.add(jButton2);     jLabel2.setBounds(24, 240, 195, 33);     jLabel2.setText("");     cp.add(jLabel2);       jComboBox1.addActionListener(new ActionListener() {       public void actionPerformed(ActionEvent evt) {         jComboBox1_ActionPerformed(evt);       }     });     setVisible(true);   } // end of public JcomboBox1     public void jComboBox1_ActionPerformed(ActionEvent evt) {         jLabel2.setText(jComboBox1.getSelectedItem().toString());   }   public void Pares_ActionPerformed(ActionEvent evt) {     int i;         DefaultComboBoxModel modelo = new DefaultComboBoxModel();         for (i=0;i<10;i+=2) {       modelo.addElement("Nº "+i);     }         jComboBox1.setModel(modelo);           }     public void jButton2_ActionPerformed(ActionEvent evt) {     int i;     DefaultComboBoxModel modelo = new DefaultComboBoxModel();         for (i=1;i<10;i+=2) {       modelo.addElement("Nº "+i);     }         jComboBox1.setModel(modelo);           }     public static void main(String[] args) {     new JcomboBox1("JcomboBox1");   } }