Thread: How to select default value of jRadioButton inside jTable

Hi experts.

I am new in java but I've spent time learning. I created a jTable with jRadioButton inside using JDBC, my code:

        MyObjectManager manager = new MyObjectManager();
        try
        {
            Connection conn = dbConnection();
            PreparedStatement pre = conn.prepareStatement("Select Clave_Familia as Cve, Descripcion_Familia as Familia from famMat_Familias order by Clave_Familia");
            ResultSet rs = pre.executeQuery();
            while(rs.next())
             {
                    object = new MyObject(rs.getString(1)+" "+rs.getString(2));
                    manager.addObject(object);
             }
        }
        catch(SQLException e )        {
                System.out.print(e);
        }
        table = new JTable(new MyTableModel(manager));
        table.setRowHeight(20);
        TableColumn column = table.getColumnModel().getColumn(1);
        column.setCellEditor(new RadioButtonCellEditorRenderer());
        column.setCellRenderer(new RadioButtonCellEditorRenderer());
 
        table.getColumnModel().getColumn(0).setResizable(false);
        table.getColumnModel().getColumn(0).setPreferredWidth(480);
 
 
        // Asignar gFam del radio button seleccionado
        if (Global.gFam != null)
            {
                nTotFilas = table.getRowCount()-1;
                sFam = Global.gFam.toString();
                for(nFila=0; nFila<nTotFilas+1 ; nFila++)
                {
                    sCveNew = table.getValueAt(nFila, 0).toString();
                    if(sCveNew.substring(0, 2).equals(sFam.substring(0, 2)))
                    {
                        // System.out.println("I found it");
                        // Check radio button of table in column one
                        // table.getModel().setValueAt(this, 1, 0);
                    } 
                }
            } 
 
        table.getColumnModel().getColumn(1).setResizable(false);
        table.getColumnModel().getColumn(1).setPreferredWidth(70);
        //:) Falta seleccionar la primera familia
        //
 
        table.changeSelection(1, 0, true, true);
 
        setTitle( "Codificación de Materiales" );
        setSize( 1000, 750 );
        setBackground( Color.gray );
        JPanel topPanel = new JPanel();
        topPanel.setLayout( new BorderLayout() );
        getContentPane().add( topPanel );
        //creaCodifica(); // Codifica
        jpCodifica = new JPanel(); // Crea los Tabs
        jpCodifica.setLayout( null );
 
        JScrollPane jspFam = new JScrollPane(table); // Familia
        jspFam.setBounds(10, 10, 300, 630);
        jpCodifica.add( jspFam );

I found his sample code:

import java.applet.Applet;   
import java.awt.Checkbox;   
import java.awt.CheckboxGroup;   
/*  
<applet code="SetSelectedRadioButtonExample" width=200 height=200>  
</applet>  
*/  
public class SetSelectedRadioButtonExample extends Applet{   
        CheckboxGroup lngGrp = null;   
        public void init(){   
                //create group   
                lngGrp = new CheckboxGroup();   
                //create checkboxes and add to group   
                Checkbox java = new Checkbox("Java", lngGrp, false);   
                Checkbox cpp = new Checkbox("C++", lngGrp, false);   
                Checkbox vb = new Checkbox("VB", lngGrp, false);   
                //add radio buttons   
                add(java);   
                add(cpp);   
                add(vb);   
                lngGrp.setSelectedCheckbox(java);   
        }   
}

My question is how can I do the instruction

lngGrp.setSelectedCheckbox(java);

On my first code (I use JDBC for populate my jTable with jRadioButtons).

Thanks in advance
tomrey

I found how using:

table.setValueAt(true, 0, 1);

Thanks a lot anyway.