Ruby Build hashtable using arrays

Build a hashtable using arrays instead of linked lists.

# Program to build a hashtable using arrays instead of linked lists. 

h=Array.new               #creating an empty array 
arr0=Array.new
arr1=Array.new
arr2=Array.new
arr3=Array.new
arr4=Array.new
arr5=Array.new
arr6=Array.new
arr7=Array.new
arr8=Array.new
arr9=Array.new
h=[arr0,arr1,arr2,arr3,arr4,arr5,arr6,arr7,arr8,arr9]

for i in 1 ..10 do
   print("Enter an integer that you want to hash and store:")
   str=gets                 #The no. entered through the keyboard is stored in str as a string
   str.chomp!               #To remove the trailing newline
   num=str.to_i             #The string str is converted into an int

   keyindex=num%10          #The key is obtained by performing the modulus of the given no.
  case keyindex
    when 0
      arr0[arr0.size]=num
    when 1
      arr1[arr1.size]=num
    when 2
      arr2[arr2.size]=num
    when 3
      arr3[arr3.size]=num
    when 4
      arr4[arr4.size]=num
    when 5
      arr5[arr5.size]=num
    when 6
      arr6[arr6.size]=num
    when 7
      arr7[arr7.size]=num
    when 8
      arr8[arr8.size]=num
    else
      arr9[arr9.size]=num
  end

end

#To print and see if its been stored like in a hashtable

#print("The values stored at arr0: #{arr0.find_all{|e| e % 1 == 0}}\n")
print("The values at h[0] are: #{h.values_at(0)}\n")
print("The values at h[1] are: #{h.values_at(1)}\n")
print("The values at h[2] are: #{h.values_at(2)}\n")
print("The values at h[3] are: #{h.values_at(3)}\n")
print("The values at h[4] are: #{h.values_at(4)}\n")
print("The values at h[5] are: #{h.values_at(5)}\n")
print("The values at h[6] are: #{h.values_at(6)}\n")
print("The values at h[7] are: #{h.values_at(7)}\n")
print("The values at h[8] are: #{h.values_at(8)}\n")
print("The values at h[9] are: #{h.values_at(9)}\n")