Final answer:
In event handlers, the data type for radio button pointers is Boolean, and the data type for checkbox pointers is also Boolean. Radio buttons represent mutually exclusive choices while checkboxes allow for multiple independent selections, but both represent their checked state with a Boolean value.
Step-by-step explanation:
The data type for radio button pointers in handlers is typically Boolean. This is because a radio button represents a choice where the options are mutually exclusive, meaning only one can be selected at a time. When a radio button is selected, its value is generally considered to be true, and when it is not selected, its value is false.
On the other hand, the data type for checkbox pointers in handlers is also often considered to be Boolean. This is because a checkbox is used to represent an option that can be either checked (true) or unchecked (false). Unlike radio buttons, checkboxes allow for multiple selections, but each checkbox is independent and represents a single Boolean value regarding its checked state.
Therefore, both radio button and checkbox pointers typically deal with Boolean data when used within event handlers in programming. The idea is to capture the true (checked) or false (unchecked) state of these interface elements.