hey thanks for the answer john and also for the link I check it out.
I am almost finish to this tutorial after I am done with it i check your 
link.

has anyone have the answer of "Daniel Carrera" exercise I cannot seem to 
find
the answer sheet of the exercise so that i can compare my answer are 
right or wrong. here is the link of the said exercise.

http://localdoc.scusa.lsu.edu/ruby/Tutorial/index.html

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