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Thread: result set array button

  1. #1
    Junior Member dread_arisawa's Avatar
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    Default result set array button

    hi everyone i try to create some program that made button from the array and this array get its items form result set , can you help me because i have try it there's no error message but program can't be launch where i've got wrong and once morei am using netbeans ,

     
    import java.sql.*;
    import java.util.logging.Level;
    import java.util.logging.Logger;
    import java.awt.*;
    import java.awt.event.*;
    import javax.media.Controller;
    import javax.swing.*;
     
     
    public class betapoint extends javax.swing.JFrame {
     
        public String[] buttonTxt;
        JButton[] buttons = new JButton[buttonTxt.length];
        public betapoint() {
            initComponents();
        }
        public void ButtonPanel() {
            for (int i = 0; i < buttons.length; i++) {
            buttons[i] = new JButton(buttonTxt[i]);
            buttons[i].setSize(80, 80);
            buttons[i].addActionListener((ActionListener) jPanel1);
            this.add(buttons[i]);
    }
    }
     
     
        public void getshow() {
     
           float nilai = Float.parseFloat(jTextField1.getText());
     
           try {
    			Class.forName(Koneksi.driver);
     
                            Connection konek1;
                            konek1 = DriverManager.getConnection (Koneksi.database, Koneksi.user, Koneksi.pass);
                            Statement st1 = konek1.createStatement();
                            ResultSet rs1 = st1.executeQuery("SELECT no FROM lookout WHERE nilai <='" + nilai + "'");
                            while(rs1.next())
    				{ 
                                String buttonTxt = rs1.getString("no");
                                System.out.println(buttonTxt);
    			    }
       			konek1.close();
    		}
     
                    catch (SQLException ex) {
                    Logger.getLogger(betapoint.class.getName()).log(Level.SEVERE, null, ex);
                }            catch (ClassNotFoundException ex){
                    System.out.println("ERROR ->>> can't open Database . . .");
                    Logger.getLogger(betapoint.class.getName()).log(Level.SEVERE, null, ex);
                }
        }
    private void initComponents() {
     
            jButton1 = new javax.swing.JButton();
            jTextField1 = new javax.swing.JTextField();
            jPanel1 = new javax.swing.JPanel();
     
            setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
     
            jButton1.setText("ok");
     
     private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
            getshow();
        } 
     
    public static void main(String args[]) {
            java.awt.EventQueue.invokeLater(new Runnable() {
                public void run() {
                    new betapoint().setVisible(true);
     
                }
            });
        }
     
    private javax.swing.JButton jButton1;
     private javax.swing.JPanel jPanel1;
    private javax.swing.JTextField jTextField1;


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: result set array button

    This statement looks strange:
    buttons[i].addActionListener((ActionListener) jPanel1);

    Where do you create jPanel1 that makes it an ActionListener?

    You need to read about how to create and use listeners.


    You have two variables with the same name:

    public String[] buttonTxt;
    and
    String buttonTxt = rs1.getString("no");

    You need to resolve this. One must be wrong.
    Last edited by Norm; August 17th, 2010 at 02:42 PM.

  3. #3
    Junior Member dread_arisawa's Avatar
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    Default Re: result set array button

    thanks for quick respond norm and sorry for late reply

    yes i guess i must learn more about ActionListener

    the second problem i forgot to delete string in the second variable

    its must like this

     
    public String[] buttonTxt;
     
    .....
     
    buttonTxt = rs1.getString("no");

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