Checkbox in some cells but not all, in a particular column - JTable

Question

This may be a vague query, so please pardon me.

Customized JTable (I\'ve modified the query and will discuss based on the SSCCE provided). I\'ve to create a JTable t

Answer 1

You can use the Boolean wrapper class instead of the raw type and write your own TableCellRenderer and override the getTableCellRendererComponent(..) method.

public class CustomTableCellRenderer extends DefaultTableCellRenderer
{
    public CustomTableCellRenderer()
    {
        super();
    }

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, 
            boolean isSelected, boolean hasFocus, int row, int column)
    {
        super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);

        if(value instanceof Boolean)
        {
            if(value != null)
            {
                 JCheckBox jcb = new JCheckBox();
                 jcb.setSelected((Boolean) value);

                 return jcb;
            }
            return new JPanel();
        }
    return this;
    }
}

Then just simply set infos.setDefaultRenderer(Boolean.class, new CustomTableCellRenderer()); and replace your raw types in the array with new Boolean(true). Wherever you don't want to have a JCeckBox you put a null instead of a Boolean and an empty JPanel will appear.