Write three function prototypes:
function 1: return type: void function name: printheading parameters: one string called heading
function 2: return type: int function name: year page parameters: one int called current year, one int called birthyear
function 3: return type: void function name: printable parameters: one array of strings called names, one array of ints called birthdays, one int called size

Declaration for function 1:

void printHeading(String heading);

Declaration for function 2:

int yearPage(int currentYear, int birthYear);

Declaration for function 3:

void printable(String [] names, int [] birthDays, int size);

Explanation:

Prototypes of any function includes its return type followed by its name followed by list of arguments used by it enclosed within parenthesis.

Syntax for method declaration:

return_type  function_name (list_of_arguments);