From: jazzez ravi <jazzezravi@...>
Date: 2009-02-28T21:14:29+09:00
Subject: Doubt in -- Ruby --> Array --> array.display  -- method

Hi All,

I created few (array's method related) questions in ruby. But I am not
clear about one question. Here is the question ..


Question 7
(from
http://raveendran.wordpress.com/2009/02/18/ruby-array-related-excercise/)

@a=[34,45,56,2,13,54]

@b= @a[2].display.to_i + @a[3].display.to_i

puts @b gives,

a) Error b) 58 c) 5620 d) 562

This is the question. In my view,

MY Solution 1:

@a[2].display.to_i => 56.display gives 56.to_i  => 56
@a[3].display.to_i =>  2.diaply gives 2.to_i   => 2

@b= 56 + 2

@b must come as 58

MY Solution 2:

56.display -> displays 56 -> Here .to_i will not work

So my answers is,

@b= 562


But the result came as 5620   . how it works ?

Thanks,
P.Raveendran
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