What happens when you invoke a method on a nil pointer?

1308

i have 2 tables 4 colums table 1 respective values a1 6, a2 8,a3 9,a4 14 & table 2 respective values a1 6, a2 8, a3 9, a4 12. if compare 2 tables 3 colums values same then 4th column values 1)Qes diff >5 then (5 * diff value ) 2)Qes diff <5 the 5 3)Qes diff 5 then 5 print respective values..

1077

Explain what are db_options used for?

807

whats is statement and procedure

1001

Please send me BO certification details and question papers? this is my mail id: valsreenivas@gmail.com

1119

project for education sector marketing

1185

How many interviews have you had and how do you feel about this company compared to others?

935

when a Load Runner controller fails?

1738

What are the disadvantages of Hybrid framework

4678

dear sir i need rrb chennai Section engineer S & T for last 2 year question papers. Plz send my email id is gsmaliniraj@yahoo.co.in, malinisankaram@gmail.com

996

what is differnce btwen lll and lllg faults

771

What is satellite cooding in telecom transmission system?

948

package MYCALC; use Exporter; our @EXPORT = (); our @ISA = qw(Exporter); our @EXPORT_OK = qw(addition multi); our %EXPORT_TAGS = (DEFAULT => [qw(&addition)],Both => [qw(&addition & +multi)]); sub addition { return $_[0] + $_[1]; } sub multi { return $_[0] * $_[1]; } 1; Program: use strict; use warnings; my @list = qw (2 2); use Module qw(:DEFAULT); print addition(@list),"\n"; Above coding is my module MYCALC and the program which using this module, I have not exported any function using @EXPORT, but I have used the DEFAULT in %EXPORT_TAGS with the function addition, when I call this function from the main it says the error as,

1458

What is the damage powdery mildew do on plants?

851

What is identity mapper and reducer? In which cases can we use them?

298