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JTable issue in swing?

Devendra Ghag
Greenhorn

Joined: Jun 19, 2013
Posts: 14
when i enter the customer id then pressed ok the detail of that particular customer will not apper in the jtable?
why these is so please help me out from these sitivuation please
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.*;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;

public class TestTable {

public static void main(String[] args) {
TestTable testTable = new TestTable();
}

public TestTable() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}

JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new TestTable.Bill());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}

public class Bill extends JPanel implements ActionListener {

JTextField textFieldId;
JLabel l1;
JLabel l2;
JButton b2;
ResultSet rs1 = null;
DefaultTableModel dtm = new DefaultTableModel();

public Bill() {
setLayout(new BorderLayout());

JPanel fields = new JPanel();

textFieldId = new JTextField(10);
l1 = new JLabel("New Customer Entry :-");
l2 = new JLabel("Customer Id");
b2 = new JButton("Ok");

fields.add(l2);
fields.add(textFieldId);
fields.add(b2);

add(fields, BorderLayout.NORTH);

b2.addActionListener(this);

// Don't forget to add a table.
add(new JScrollPane(new JTable(dtm)));

}

@Override
public void actionPerformed(ActionEvent e) {

System.out.println("You clicked the button");
if (e.getSource() == b2) {
PreparedStatement ps = null;
try {
Connection con;
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con = DriverManager.getConnection("jdbcdbc:devendra");
ps = con.prepareStatement("SELECT * FROM Customer where Customer_Id = ?");
// You must bind the parameter with a value...
ps.setString(1, textFieldId.getText());
rs1 = ps.executeQuery();
while (rs1.next()) {
dtm.addRow(new Object[]{rs1.getString(1), rs1.getString(2), rs1.getInt(3), rs1.getString(4)});}
JOptionPane.showMessageDialog(null, "You successfully Enter the Entry");
} catch (SQLException s) {
System.out.println("SQL code does not execute.");
JOptionPane.showMessageDialog(null, "Please Enter the Detail Correctly");
} catch (Exception exp) {
JOptionPane.showMessageDialog(this, "Failed to perform query: " + exp.getMessage());
} finally {

try {
ps.close();
} catch (Exception ex) {
}

}
}
}
}
}

 
It is sorta covered in the JavaRanch Style Guide.
 
subject: JTable issue in swing?