Contoh JApplet Form Sederhana menggunakan NetBean 7.0

Bagaimana Membuat suatu Aplikasi berbasis Web ??? Salah satunya menggunakan Applet pada Java.

Contoh ;





Caranya Adalah sbb :

1. Buatlah New Project dan pilih Java Application. Beri nama AppletForm

2. Butlah new file jApplet Form dan berinama Hitung



3. Kemudian buatlah Design nya , (sesuaikan vaiabelnya dengan kode terlampir).Tambahkan Kode yang berwarna Merah:

4. Compile lah dengan cara Run Compile File jan jalan kan Run File. Maka secara otomatis akan terbentuk File Hitung.html






/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * hitung.java
 *
 * Created on 21 Feb 13, 9:14:52
 */
package appletform;

/**
 *
 * @author ZYREX
 */
public class hitung extends javax.swing.JApplet {

    /** Initializes the applet hitung */
    public void init() {
        try {
            java.awt.EventQueue.invokeAndWait(new Runnable() {

                public void run() {
                    initComponents();
                }
            });
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    /** This method is called from within the init() method 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() {

        jLabel5 = new javax.swing.JLabel();
        bOK = new javax.swing.JButton();
        tfhasil = new javax.swing.JTextField();
        jLabel4 = new javax.swing.JLabel();
        cboperator = new javax.swing.JComboBox();
        jLabel2 = new javax.swing.JLabel();
        jLabel1 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        tfbil1 = new javax.swing.JTextField();
        tfbil2 = new javax.swing.JTextField();

        jLabel5.setText("FORM PERHITUNGAN ( CONTOH JAPPLET FORM  )");

        bOK.setText("Ok");
        bOK.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                bOKActionPerformed(evt);
            }
        });

        jLabel4.setText("Hasil         :");

        cboperator.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "+", "-", "*", "/" }));

        jLabel2.setText("Bilangan 2  :");

        jLabel1.setText("Bilangan 1  :");

        jLabel3.setText("Operator  :  ");

        tfbil1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                tfbil1ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 400, Short.MAX_VALUE)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel1)
                                .addGap(18, 18, 18)
                                .addComponent(tfbil1, javax.swing.GroupLayout.PREFERRED_SIZE, 77, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jLabel2)
                                .addGap(18, 18, 18)
                                .addComponent(tfbil2)))
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addGap(10, 10, 10)
                                .addComponent(jLabel3)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(cboperator, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(layout.createSequentialGroup()
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jLabel4)
                                .addGap(18, 18, 18)
                                .addComponent(tfhasil, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE))))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(155, 155, 155)
                        .addComponent(bOK))
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(jLabel5, javax.swing.GroupLayout.PREFERRED_SIZE, 294, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(86, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 300, Short.MAX_VALUE)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jLabel5)
                .addGap(35, 35, 35)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel1)
                    .addComponent(jLabel3)
                    .addComponent(tfbil1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(cboperator, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(35, 35, 35)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(tfbil2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel4)
                    .addComponent(tfhasil, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(40, 40, 40)
                .addComponent(bOK)
                .addContainerGap(113, Short.MAX_VALUE))
        );
    }// </editor-fold>

    private void bOKActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
        double bil1 = Double.parseDouble(tfbil1.getText());
        double bil2 = Double.parseDouble(tfbil2.getText());
        double hasil = 0 ;
        int op = cboperator.getSelectedIndex();
        switch(op){
            case 0 : hasil = bil1 + bil2 ; break ;
            case 1 : hasil = bil1 - bil2 ; break ;
            case 2 : hasil = bil1 * bil2 ; break ;
            case 3 : hasil = bil1 / bil2 ; break ;
        }
        tfhasil.setText(hasil+"");
}

    private void tfbil1ActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
}

    // Variables declaration - do not modify
    private javax.swing.JButton bOK;
    private javax.swing.JComboBox cboperator;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JTextField tfbil1;
    private javax.swing.JTextField tfbil2;
    private javax.swing.JTextField tfhasil;
    // End of variables declaration
}

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