Friday, July 21, 2017

contoh program sederhana database

Halo teman- teman, saya akan mempublikasikan program saya, jika ada kekurangan mohon kritik dan sarannya ya... 
Disini saya membuat program (Data Base) pembayaran angsuran (lising) pembalian kendaraan.
disini saya menggunakan:
-Label
-Tetx field
-Combo Box
-Botton
-Jframe
screenshoot design dan databaseny beserta sourch ny adalah sebagai berikut:












 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package uts18july2017mitha;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author Mitha Sitanggang
 */
public class bayar extends javax.swing.JFrame {

    Connection db;
Statement b;
ResultSet h;

String query;

String nama,ktp,alamat,jenis,tempo,bayar,sktp;
String nm, almt, nktp, tnr,dnd,tmp,knd;
int id;
   
    /**
     * Creates new form bayar
     */
    public bayar() {
        initComponents();
    }

    void dataDaftar(){
    nama =(String) NAMABAYAR.getText();
    ktp =(String) KTPB.getText();
    alamat =(String) ALAMATB.getText();
    tempo =(String) TEMPOB.getText();
    bayar =(String) BAYARB.getText();
   

    }
   
    void koneksi() throws SQLException{
        dataDaftar();
        db = DriverManager.getConnection("jdbc:mysql://localhost/credit","root","");
       
        Statement st = db.createStatement();
        sktp = (String) KTPBAYAR.getText();
        h = st.executeQuery("select nama,noktp,alamat,kendaraan,tempo,denda,tenor from daftar where noktp='"+ sktp +"'");
       
        while(h.next()){
            nm = h.getString("nama");
            almt = h.getString("alamat");
            nktp = h.getString("noktp");
            tnr = h.getString("tenor");
//            id = h.getInt("id");
            dnd = h.getString("denda");
            tmp = h.getString("tempo");
            knd = h.getString("kendaraan");         
           
        }
            NAMABAYAR.setText(nm);
            KTPB.setText(nktp);
            ALAMATB.setText(almt);
            JENISB.setText(knd);
            TENORB.setText(tnr);
            TEMPOB.setText(tmp);
//        PreparedStatement d = db.prepareStatement(query);
//        d.execute();
       

    }
   
    void bayar() throws SQLException{
        koneksi();
        bayar = BAYARB.getText();
       
        query="insert into bayar(noktp,bayar) values('"+nktp+"','"+ bayar +"')";

        PreparedStatement d = db.prepareStatement(query);
        d.execute();
    }
   
    /**
     * 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() {

        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        KTPBAYAR = new javax.swing.JTextField();
        jPanel1 = new javax.swing.JPanel();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        jLabel5 = new javax.swing.JLabel();
        jLabel6 = new javax.swing.JLabel();
        jLabel7 = new javax.swing.JLabel();
        jLabel8 = new javax.swing.JLabel();
        jLabel9 = new javax.swing.JLabel();
        NAMABAYAR = new javax.swing.JTextField();
        KTPB = new javax.swing.JTextField();
        jScrollPane1 = new javax.swing.JScrollPane();
        ALAMATB = new javax.swing.JTextArea();
        JENISB = new javax.swing.JTextField();
        TENORB = new javax.swing.JTextField();
        TEMPOB = new javax.swing.JTextField();
        BAYARB = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jLabel1.setText("PEMBAYARAN ANGSURAN");

        jLabel2.setText("NO.KTP");

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

        jLabel3.setText("NAMA");

        jLabel4.setText("NO.KTP");

        jLabel5.setText("ALAMAT");

        jLabel6.setText("JENIS KENDARAAN");

        jLabel7.setText("TENOR");

        jLabel8.setText("JATUH TEMPO");

        jLabel9.setText("BAYAR");

        NAMABAYAR.setEnabled(false);

        KTPB.setEnabled(false);
        KTPB.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                KTPBActionPerformed(evt);
            }
        });

        ALAMATB.setColumns(20);
        ALAMATB.setRows(5);
        ALAMATB.setEnabled(false);
        ALAMATB.setFocusCycleRoot(true);
        ALAMATB.setFocusTraversalPolicyProvider(true);
        jScrollPane1.setViewportView(ALAMATB);

        JENISB.setEnabled(false);
        JENISB.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                JENISBActionPerformed(evt);
            }
        });

        TENORB.setEnabled(false);
        TENORB.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                TENORBActionPerformed(evt);
            }
        });

        TEMPOB.setEnabled(false);

        jButton1.setText("Bayar");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 62, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel4)
                    .addComponent(jLabel5)
                    .addComponent(jLabel6)
                    .addComponent(jLabel7)
                    .addComponent(jLabel8)
                    .addComponent(jLabel9))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jButton1)
                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                        .addComponent(NAMABAYAR)
                        .addComponent(KTPB)
                        .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 173, Short.MAX_VALUE)
                        .addComponent(JENISB)
                        .addComponent(BAYARB)
                        .addComponent(TENORB)
                        .addComponent(TEMPOB)))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel3)
                    .addComponent(NAMABAYAR, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel4)
                    .addComponent(KTPB, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 40, Short.MAX_VALUE)
                        .addComponent(jLabel5)
                        .addGap(65, 65, 65)
                        .addComponent(jLabel6)
                        .addGap(18, 18, 18)
                        .addComponent(jLabel7)
                        .addGap(22, 22, 22))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(30, 30, 30)
                        .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 86, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(JENISB, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(TENORB, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(4, 4, 4)
                        .addComponent(jLabel8))
                    .addComponent(TEMPOB, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(BAYARB, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel9))
                .addGap(11, 11, 11)
                .addComponent(jButton1))
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addGap(130, 130, 130)
                                .addComponent(jLabel1))
                            .addGroup(layout.createSequentialGroup()
                                .addContainerGap()
                                .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 61, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addGap(40, 40, 40)
                                .addComponent(KTPBAYAR, javax.swing.GroupLayout.PREFERRED_SIZE, 259, javax.swing.GroupLayout.PREFERRED_SIZE)))
                        .addGap(0, 17, Short.MAX_VALUE))
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabel2)
                    .addComponent(KTPBAYAR, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGap(62, 62, 62))
        );

        pack();
    }// </editor-fold>                       

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

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

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

    private void KTPBAYARActionPerformed(java.awt.event.ActionEvent evt) {                                        
        try {
            // TODO add your handling code here:
            koneksi();

//            BAYARB.setText(bayar);
           
           
        } catch (SQLException ex) {
            Logger.getLogger(bayar.class.getName()).log(Level.SEVERE, null, ex);
        }
    }                                       

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                        
        try {
            // TODO add your handling code here:
            bayar();
        } catch (SQLException ex) {
            Logger.getLogger(bayar.class.getName()).log(Level.SEVERE, null, ex);
        }
    }                                       

    /**
     * @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(bayar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(bayar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(bayar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(bayar.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 bayar().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                    
    private javax.swing.JTextArea ALAMATB;
    private javax.swing.JTextField BAYARB;
    private javax.swing.JTextField JENISB;
    private javax.swing.JTextField KTPB;
    private javax.swing.JTextField KTPBAYAR;
    private javax.swing.JTextField NAMABAYAR;
    private javax.swing.JTextField TEMPOB;
    private javax.swing.JTextField TENORB;
    private javax.swing.JButton jButton1;
    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.JLabel jLabel6;
    private javax.swing.JLabel jLabel7;
    private javax.swing.JLabel jLabel8;
    private javax.swing.JLabel jLabel9;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane1;
    // End of variables declaration                  
}
 

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