Problem with CheckBox as table cell renderer

Question

i m making a JTable having three columns.
i m also making a cellRenderer of my own MyRenderer
extending Jcheckbox and implementing TableCellRenderer
now i m setting MyRenderer as renderer for third column in my table and
DefaultCellEditor with jcheckbox as parameter as cell editor for this column
the code is like this--------------------
****making of JTable****
table= new JTable(3,3);
JScrollPane scrollPane = new JScrollPane(table);
TableColumn tableColumn = table.getColumn("Male"); // let us suppose that this gives third column
tableColumn.setCellRenderer(new MyRenderer ());
tableColumn.setCellEditor(new DefaultCellEditor(new JCheckBox()));
*****The classs implementing TableCellRenderer is given below******
class MyRenderer extends JCheckBox implements TableCellRenderer{
public MyRenderer(){
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus,
int row, int column){
if(value != null){
Boolean booleanValue = (Boolean)value;
setSelected(booleanValue.booleanValue());
return this;
***********************************Problem****************************
The problem is that when we click on the cell of that column first time,
all the cells are selected.
I don't want to use getColumnClass() method for this problem .
If possible , please give some other solution.
what is the problem behind this,If anybody can help us.
Thanks in advance.

Answer 1

I think the problem is, when the value is null the checkbox return with the selected state, b'coz u r
returning the checkbox (as it is). so pl'z try with below code (ADDED).
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus,
int row, int column){
if(value != null){
Boolean booleanValue = (Boolean)value;
setSelected(booleanValue.booleanValue());
else /// ADDED
setSelected(false);/// ADDED
return this;
Nediaph.