Form Anggota setengah jadi

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 * 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 cobajavaswing;

import com.mysql.jdbc.Statement;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.swing.table.DefaultTableModel;

/**
 *
 * @author gurum
 */
public class frmAnggota extends javax.swing.JFrame {
     DefaultTableModel tableModel;
     private Connection conn;
    /**
     * Creates new form frmAnggota
     */
    public frmAnggota() {
        initComponents();
        initTable();
        loadData();

    }

    /**
     * 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();
        jScrollPane1 = new javax.swing.JScrollPane();
        jtblAnggota = new javax.swing.JTable();
        btnRefresh = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jLabel1.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
        jLabel1.setText("Form Anggota");

        jtblAnggota.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null}
            },
            new String [] {
                "Title 1", "Title 2", "Title 3", "Title 4"
            }
        ));
        jScrollPane1.setViewportView(jtblAnggota);

        btnRefresh.setText("Refresh");
        btnRefresh.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnRefreshActionPerformed(evt);
            }
        });

        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.TRAILING)
                    .addComponent(btnRefresh)
                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addGroup(layout.createSequentialGroup()
                            .addContainerGap()
                            .addComponent(jLabel1))
                        .addGroup(layout.createSequentialGroup()
                            .addGap(35, 35, 35)
                            .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 452, javax.swing.GroupLayout.PREFERRED_SIZE))))
                .addContainerGap(47, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 170, Short.MAX_VALUE)
                .addComponent(btnRefresh)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 137, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );

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

    private void btnRefreshActionPerformed(java.awt.event.ActionEvent evt) {
        loadData();
    }

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

    // Variables declaration - do not modify
    private javax.swing.JButton btnRefresh;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTable jtblAnggota;
    // End of variables declaration

    private void initTable() {
        tableModel = new DefaultTableModel();
        jtblAnggota.setModel(tableModel);
        tableModel.addColumn("ID");
        tableModel.addColumn("Nama Anggota");
        tableModel.addColumn("No HP");
        tableModel.addColumn("Alamat");
    }

private void loadData(){
        //menghapus seluruh data yg ada di tabel
        tableModel.getDataVector().removeAllElements();
        //pemberitahuan tabel telah kosong
        tableModel.fireTableDataChanged();

        try{
            conn = Koneksi.getConnection();
            String query = "SELECT * FROM anggota";

            Statement stmt = (Statement) conn.createStatement();
            ResultSet rs = stmt.executeQuery(query);

            //mengisi tabel dgn data hasil query
            while (rs.next()){
                Object[] anggota = new Object[6];
                anggota[0] = rs.getString("Kode_Anggota");
                anggota[1] = rs.getString("Nama_Anggota");
                anggota[2] = rs.getString("no_HP");
                anggota[3] = rs.getString("alamat_anggota");
                tableModel.addRow(anggota);
            }
            rs.close();
            stmt.close();
        } catch (SQLException ex) {
            System.out.println(ex.getMessage());
        }
    }
}