I want to do this:

When I press on a checkbox 'Monday', the program displays the List 'lstMonday'
When I press on a checkbox 'Tuesday', the program displays the List'lstTuesday'

How can I achieve this? I've tried to do it ut can't:(

Thanks in advance

you can do this by writing the code, not just copy pasting your assignment here.
show us what you've got so far, why it isn't working (is it giving wrong input? is it getting an error message?...) and of course, if there is an error message, you may want to show that as well.