Calling a sub routine with 'subroutine_name();'

   

sub my_subroutine {
    print "In a subroutine.\n";
}

print "Before subroutine.\n";

my_subroutine();

print "After subroutine.\n";

1.	Call a subroutine and use it
2.	Call a subroutine without defining it
3.	Call sub
4.	Call the subroutine with $number
5.	Calling a sub routine with &
6.	Calling function in print statement
7.	Calling subroutines that are not defined before use

Calling a sub routine with 'subroutine_name();' : Subroutine Call « Subroutine « Perl