i want the specific column of current date should be editable . and other that current date should be non editable or disable or read only in jtable

This is front end of the attendance sheet of the particular month.and the month can be changed from combobox.above the date there is one checkbox .the significance of that checkbox is that if it is selected all members attendance for that day is marked.and if any of the checkbox of the member attendance is unchecked then select all checkbox is unchecked.now i want my date column should enable or editable according to current date