CheckBoxes and JTables

[lakshayghai]

My third column contains checkboxes. how can i get which checkbox is selected and which is not selected.
I have to populate my database with the rows that are checked.
plz help me. the code is given below

import java.awt.event.*;
import java.awt.*;
import java.sql.*;
import java.util.*;
import javax.swing.*;
import javax.swing.table.TableColumn;
import javax.swing.DefaultCellEditor;

public class TakeAttendance extends JFrame
{

Vector columnNames = new Vector();
Vector data = new Vector();
Container con = getContentPane();
JButton ok= new JButton("SUBMIT");
public TakeAttendance(Object o){
try
{
con.setLayout(new BorderLayout());
this.setTitle("Take Attendance");
this.setLocation(new Point(0, 0));
this.setSize(new Dimension(500, 500));
String sem=o.toString();
// Connect to the Database

Class.forName("com.mysql.jdbc.Driver");
Connection conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/onlineattendance","root","lucky");
Statement st=conn.createStatement();


// Read data from a table
String sql = "Select userID ID, name from users,student where semester='"+sem+"'and users.userId=student.studentID";
//String sqlq="Select * from student";
ResultSet rs = st.executeQuery( sql );
ResultSetMetaData md = rs.getMetaData();
int columns = md.getColumnCount();

// Get column names

for (int i = 1; i <= columns; i++)
{
columnNames.addElement( md.getColumnName(i) );
}

// Get row data

while (rs.next())
{
Vector row = new Vector(columns);

for (int i = 1; i <= columns; i++)
{
row.addElement( rs.getObject(i) );

}
row.addElement(new Boolean(false));
data.addElement( row );
}

rs.close();
st.close();
}
catch(Exception e)
{
System.out.println( e );
}
columnNames.addElement("Attendance");



// Create table with database data

JTable table = new JTable(data, columnNames){public Class getColumnClass(int column) {
if(column==2)
return Boolean.class;
else
return super.getColumnClass(column);
}};
JScrollPane jsp = new JScrollPane(table);

TableColumn includeColumn = table.getColumnModel().getColumn(2);
final JCheckBox check = new JCheckBox();
includeColumn.setCellEditor(new DefaultCellEditor(check));





getContentPane().add(jsp,BorderLayout.CENTER);
getContentPane().add(ok,BorderLayout.SOUTH);
this.setSize(new Dimension(600, 600));
ok.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e)
{

}
});
this.setVisible(true);

}

}



plzz help..

thanks...

[DarrylBurke]

Read the API for JTable and look for a method that returns the value at a row and column.

db