Manikandan Mca

• Aug 18th, 2007

 

If you declare one variable as global we can access any where, where as class variable visibility only in the class 
Example
class Test
def h
  $a = 5
  @b = 4
 
while $a > 0
puts $a
$a= $a - 1
end
end
end
test = Test.new
test.h
puts $a                     # 5
puts @b                    #nil

kalyan.allampalli

 Profile Answers by kalyan.allampalli 

• May 19th, 2009

 

A Global variable ($a) has a full scope in application. We can use any where in the application as you want.