You can enter an initial value for a check box in the Initial Value property field. The initial value specifies the initial value of the item, and thus determines whether the check box is initially checked or unchecked.
You must specify a valid initial value unless:
Note: The initial value does not get assigned until Oracle Forms creates a record in the block. A check box in a Null record, that is, a record that has not yet been initialized, appears unchecked.