Contoh Aplikasi Program Java NetBeans

Assalamu’alaikum… :)

Disini saya akan berbagi tentang penerapan Program JAVA menggunakan NetBeans dan sekaligus untuk memenuhi tugas UTS “ALGORITMA DAN PEMROGRAMAN”.

Contohnya pembuatan form “Penjualan Laptop” seperti gambar berikut.

                          

Ini adalah gambar Source Codingnya..! 

   
         

    
 
   

        

Source Codingnya yaitu:

public class Tryagain extends javax.swing.JFrame {

    /**

     * Creates new form Tryagain

     */

    public Tryagain() {

        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">                         

    private void initComponents() {

        jScrollPane1 = new javax.swing.JScrollPane();

        jList1 = new javax.swing.JList();

        buttonGroup1 = new javax.swing.ButtonGroup();

        VBrand = new javax.swing.JLabel();

        VJumlahbarang = new javax.swing.JLabel();

        VProcessor = new javax.swing.JLabel();

        VHarga = new javax.swing.JLabel();

        ComboProcessor = new javax.swing.JComboBox();

        ComboBrand = new javax.swing.JComboBox();

        Harga1 = new javax.swing.JTextField();

        Jumlahbarang1 = new javax.swing.JTextField();

        Proses1 = new javax.swing.JButton();

        Selesai1 = new javax.swing.JButton();

        Mulai1 = new javax.swing.JButton();

        jLabel1 = new javax.swing.JLabel();

        VHasil = new javax.swing.JLabel();

        Hasil1 = new javax.swing.JTextField();

        jLabel2 = new javax.swing.JLabel();

        jList1.setModel(new javax.swing.AbstractListModel() {

            String[] strings = { "Item 1", "Item 2", "Item 3", "Item 4", "Item 5" };

            public int getSize() { return strings.length; }

            public Object getElementAt(int i) { return strings[i]; }

        });

        jScrollPane1.setViewportView(jList1);

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        addWindowListener(new java.awt.event.WindowAdapter() {

            public void windowActivated(java.awt.event.WindowEvent evt) {

                formWindowActivated(evt);

            }

            public void windowClosed(java.awt.event.WindowEvent evt) {

                formWindowClosed(evt);

            }

        });

        VBrand.setText("Brand");

        VJumlahbarang.setText("Jumlah Barang");

        VProcessor.setText("Processor");

        VHarga.setText("Harga");

        ComboProcessor.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Corei3", "Core 2 Duo", "Intel Atom", "AMD" }));

        ComboProcessor.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                ComboProcessorActionPerformed(evt);

            }

        });

        ComboBrand.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                ComboBrandActionPerformed(evt);

            }

        });

        Harga1.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                Harga1ActionPerformed(evt);

            }

        });

        Proses1.setText("Proses");

        Proses1.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                Proses1ActionPerformed(evt);

            }

        });

        Selesai1.setText("Selesai");

        Selesai1.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                Selesai1ActionPerformed(evt);

            }

        });

        Mulai1.setText("Mulai");

        Mulai1.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                Mulai1ActionPerformed(evt);

            }

        });

        jLabel1.setFont(new java.awt.Font("Curlz MT", 3, 18)); // NOI18N

        jLabel1.setForeground(new java.awt.Color(255, 153, 153));

        jLabel1.setText(" PENJUALAN LAPTOP");

        VHasil.setText("Hasil");

        jLabel2.setText("Rp.");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());

        getContentPane().setLayout(layout);

        layout.setHorizontalGroup(

            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()

                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

                .addComponent(Proses1, javax.swing.GroupLayout.PREFERRED_SIZE, 144, javax.swing.GroupLayout.PREFERRED_SIZE)

                .addGap(128, 128, 128))

            .addGroup(layout.createSequentialGroup()

                .addGap(32, 32, 32)

                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER)

                    .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()

                        .addComponent(VHasil, javax.swing.GroupLayout.PREFERRED_SIZE, 107, javax.swing.GroupLayout.PREFERRED_SIZE)

                        .addGap(52, 52, 52)

                        .addComponent(Hasil1, javax.swing.GroupLayout.PREFERRED_SIZE, 176, javax.swing.GroupLayout.PREFERRED_SIZE))

                    .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()

                        .addComponent(VProcessor, javax.swing.GroupLayout.PREFERRED_SIZE, 107, javax.swing.GroupLayout.PREFERRED_SIZE)

                        .addGap(52, 52, 52)

                        .addComponent(ComboProcessor, javax.swing.GroupLayout.PREFERRED_SIZE, 176, javax.swing.GroupLayout.PREFERRED_SIZE))

                    .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()

                        .addComponent(VBrand, javax.swing.GroupLayout.PREFERRED_SIZE, 107, javax.swing.GroupLayout.PREFERRED_SIZE)

                        .addGap(52, 52, 52)

                        .addComponent(ComboBrand, javax.swing.GroupLayout.PREFERRED_SIZE, 176, javax.swing.GroupLayout.PREFERRED_SIZE))

                    .addGroup(layout.createSequentialGroup()

                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                            .addComponent(VJumlahbarang, javax.swing.GroupLayout.PREFERRED_SIZE, 107, javax.swing.GroupLayout.PREFERRED_SIZE)

                            .addGroup(layout.createSequentialGroup()

                                .addComponent(VHarga, javax.swing.GroupLayout.PREFERRED_SIZE, 107, javax.swing.GroupLayout.PREFERRED_SIZE)

                                .addGap(23, 23, 23)

                                .addComponent(jLabel2)))

                        .addGap(12, 12, 12)

                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                            .addComponent(Harga1, javax.swing.GroupLayout.PREFERRED_SIZE, 176, javax.swing.GroupLayout.PREFERRED_SIZE)

                            .addComponent(Jumlahbarang1, javax.swing.GroupLayout.PREFERRED_SIZE, 176, javax.swing.GroupLayout.PREFERRED_SIZE))))

                .addGap(0, 31, Short.MAX_VALUE))

            .addGroup(layout.createSequentialGroup()

                .addGap(32, 32, 32)

                .addComponent(Mulai1, javax.swing.GroupLayout.PREFERRED_SIZE, 144, javax.swing.GroupLayout.PREFERRED_SIZE)

                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

                .addComponent(Selesai1, javax.swing.GroupLayout.PREFERRED_SIZE, 144, javax.swing.GroupLayout.PREFERRED_SIZE)

                .addGap(34, 34, 34))

            .addGroup(layout.createSequentialGroup()

                .addGap(89, 89, 89)

                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 199, javax.swing.GroupLayout.PREFERRED_SIZE)

                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))

        );

        layout.setVerticalGroup(

            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

            .addGroup(layout.createSequentialGroup()

                .addGap(20, 20, 20)

                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)

                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                    .addGroup(layout.createSequentialGroup()

                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                            .addComponent(VHarga, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)

                            .addComponent(jLabel2))

                        .addGap(111, 111, 111))

                    .addGroup(layout.createSequentialGroup()

                        .addGap(33, 33, 33)

                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                            .addComponent(ComboBrand, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)

                            .addComponent(VBrand, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE))

                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)

                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                            .addComponent(ComboProcessor, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE)

                            .addComponent(VProcessor, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE))

                        .addGap(26, 26, 26)

                        .addComponent(Harga1, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)

                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)

                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                            .addComponent(Jumlahbarang1, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)

                            .addComponent(VJumlahbarang, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE))

                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)

                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

                            .addComponent(Hasil1, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)

                            .addComponent(VHasil, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE))

                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 46, Short.MAX_VALUE)))

                .addComponent(Proses1)

                .addGap(18, 18, 18)

                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                    .addComponent(Selesai1)

                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()

                        .addComponent(Mulai1)

                        .addGap(41, 41, 41))))

        );

        pack();

    }// </editor-fold>                       

    private void ComboBrandActionPerformed(java.awt.event.ActionEvent evt) {                                          

        // TODO add your handling code here:

       

    }                                         

    private void formWindowActivated(java.awt.event.WindowEvent evt) {                                    

        // TODO add your handling code here:

        ComboBrand.addItem("ACER");

        ComboBrand.addItem("ASUS");

        ComboBrand.addItem("SAMSUNG");

        ComboBrand.addItem("COMPACT");

        ComboBrand.addItem("HP");

        ComboBrand.addItem("LENOVO");

    }                                    

    private void formWindowClosed(java.awt.event.WindowEvent evt) {                                 

        // TODO add your handling code here:

    }                                

    private void ComboProcessorActionPerformed(java.awt.event.ActionEvent evt) {                                              

        // TODO add your handling code here:

        if(ComboProcessor.getSelectedItem()=="Corei3"){

            Harga1.setText("8000000");

        }else if(ComboProcessor.getSelectedItem()=="Core 2 Duo"){

            Harga1.setText("7000000");

        }else if(ComboProcessor.getSelectedItem()=="Intel Atom"){

            Harga1.setText("6500000");

        }else{

            Harga1.setText("6000000");

        }       

    }                                              

    private void Mulai1ActionPerformed(java.awt.event.ActionEvent evt) {                                      

        // TODO add your handling code here:

        Harga1.setText("");

        Jumlahbarang1.setText("");

        Hasil1.setText("");

    }                                     

    private void Proses1ActionPerformed(java.awt.event.ActionEvent evt) {                                       

        // TODO add your handling code here:

        int harga=Integer.parseInt(Harga1.getText());

        int jumlah=Integer.parseInt(Jumlahbarang1.getText());

        int proses=harga*jumlah;

        Hasil1.setText(""+proses);

           

    }                                      

    private void Selesai1ActionPerformed(java.awt.event.ActionEvent evt) {                                        

        // TODO add your handling code here:

        System.exit(0);

    }                                       

    private void Harga1ActionPerformed(java.awt.event.ActionEvent evt) {                                      

        // TODO add your handling code here:    

    }                                     

    /**

     * @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 (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {

                if ("Nimbus".equals(info.getName())) {

                    javax.swing.UIManager.setLookAndFeel(info.getClassName());

                    break;

                }

            }

        } catch (ClassNotFoundException ex) {

            java.util.logging.Logger.getLogger(Tryagain.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (InstantiationException ex) {

            java.util.logging.Logger.getLogger(Tryagain.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (IllegalAccessException ex) {

            java.util.logging.Logger.getLogger(Tryagain.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (javax.swing.UnsupportedLookAndFeelException ex) {

            java.util.logging.Logger.getLogger(Tryagain.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        }

        //</editor-fold>

        /* Create and display the form */

        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {

                new Tryagain().setVisible(true);

            }

        });

    }

    // Variables declaration - do not modify                    

    private javax.swing.JComboBox ComboBrand;

    private javax.swing.JComboBox ComboProcessor;

    private javax.swing.JTextField Harga1;

    private javax.swing.JTextField Hasil1;

    private javax.swing.JTextField Jumlahbarang1;

    private javax.swing.JButton Mulai1;

    private javax.swing.JButton Proses1;

    private javax.swing.JButton Selesai1;

    private javax.swing.JLabel VBrand;

    private javax.swing.JLabel VHarga;

    private javax.swing.JLabel VHasil;

    private javax.swing.JLabel VJumlahbarang;

    private javax.swing.JLabel VProcessor;

    private javax.swing.ButtonGroup buttonGroup1;

    private javax.swing.JLabel jLabel1;

    private javax.swing.JLabel jLabel2;

    private javax.swing.JList jList1;

    private javax.swing.JScrollPane jScrollPane1;

    // End of variables declaration                  

}

Selesai… semoga nilai UTS nya memuaskan, aamiin..

Wassalamu’alaikum.. :)