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How to print two zeros 00 as an integer?

I am working on some issues related to the application academy and I cannot print two 00 for my time conversion. Here is what I still have:

def time_conversion(minutes)
  hours = minutes/60            
  if minutes%60 < 10
    minutes = minutes%60
  elsif minutes%60 > 10
    minutes = minutes%60
  elsif minutes%60 == 0
    minutes = 00
  end        

  return "#{hours}:#{minutes}"
end

time_conversion(360)
+4
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4 answers

You can use sprintf:

sprintf("%02d:%02d", hours, minutes)

or equivalent String#%

"%02d:%02d" % [hours, minutes]
+6
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A very simple restructuring of your code could be with one line in your def function -

return "#{m/60}:#{m%60 == 0 ? '00' : m%60}"

Running an example from irb -

2.1.5 :077 > m=100
 => 100 
2.1.5 :078 > puts "#{m/60}:#{m%60 == 0 ? '00' : m%60}"
1:40
 => nil 
2.1.5 :079 > m=120
 => 120 
2.1.5 :080 > puts "#{m/60}:#{m%60 == 0 ? '00' : m%60}"
2:00
 => nil 
2.1.5 :081 >
+1
source

time_conversion return "%02d:%02d" % [ hours, minutes ]

. http://ruby-doc.org/core-2.1.5/String.html#method-i-25

0

Fixnum # divmod :

def time_conversion(minutes)
  "%d hours: %02d minutes" % minutes.divmod(60)
end      

time_conversion(360)
  #=> "6 hours: 00 minutes"
0

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