Adding checkbox to JTable cell

Question

Hi, I am tryin to add a checkbox to JTabel cell.
But somehow i am ending up getting 'false' in the cell instead of checkbox.
Can anyone please help me.
here is my getColumnClass and getValuAt
public Class getColumnClass(int column)
{ if(column==0) return Boolean.class;
     else return Object.class;
public Object getValueAt(int nRow, int nCol) {
     if(nCol==0)
          return new Boolean(ch.isSelected());
}

Answer 1

You can use a cell rederer that will give you more flexibility .
Add the renderer to a specific column and that will do the job.
Here is the example:
public class CheckBoxRenderer extends JCheckBox implements  TableCellRenderer {
    public CheckBoxRenderer() {
        super();
    public Component getTableCellRendererComponent(JTable table, java.lang.Object value,
            boolean isSelected, boolean hasFocus, int row, int column) {
        Color c = table.getBackground();
        this.setBackground(c);
        setSelected(value != null && ((Boolean) value).booleanValue());
        return this;
}In order to edit the value in a check box you will need to write a cell editor which
is going to be easy.