If you do not need the value of $i, you could use the XOR operator:
$i = 0
for( $j = 0; $j < 10 ; $j++ )
{
   if( $i == 0 )
   {
     $class = "even" ;
   }
   else
   {
     $class = "even" ;
   }
   $i ^= 1 ;
}

[download]
Or you could toggle $i between two values:
$i = 1 ;
for( $j = 0; $j < 10 ; $j++ )
{
   $i *= -1 ;
   if( $i == -1 )
   {
     $class = "even" ;
   }
   else
   {
     $class = "even" ;
   }
}

[download]
Or you could just flip the value of $class:
if( $class =~ /even/ )
{
   $class = "odd" ;
}
else
{
   $class = "even" ;
}

[download]
Or
$class = ( $class ~= /even/ ) ? "odd" : "even" ;

[download]

Enjoy
Keith

In reply to Re: Odd and even table rows by Anonymous Monk
in thread Odd and even table rows by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.