print "that's the answer" if $answer == 42;

##</code><code>##

if ($answer == 42)
   print "that's the answer";
else
   print "you're a jerk.  a complete kneebiter.";

##</code><code>##

print "that's the answer" if $answer == 42;
print "you're a jerk.  a complete kneebiter." unless $answer == 42;