From: vivalon@...
Date: 2007-10-04T18:40:09+09:00
Subject: a newbie question~ about 2 dimension hash? really appreciate~

I want to create a 2 dimension hash, and init it like
      A  B  C  D  E
A    0  0   0  0   0
B    0  0   0  0   0
C    0  0   0  0   0
D    0  0   0  0   0
E    0  0   0  0   0

then I can set it by ARGV
for example, if ARGV is AB2, BC5, CD7,AE6,CA2, DB3,DE8, EA3, EC9
then the expect result is
      A  B  C  D  E
A    0  2   0  0   6
B    0  0   5  0   0
C    2  0   0  7   0
D    0  3   0  0   8
E    3  0   9  0   0

well, I wrote some codes like this
#############################################
ALL="A".."E"
dimension={}
def init(dime)
	tmp={}
	ALL.each do |letter|
		tmp[letter]=0
	end
	ALL.each do |letter|
		dime[letter]=tmp
	end
	puts "Testing Init"
	ALL.each do |key1|
		ALL.each do |key2|
			print key1+key2+" value="
			puts dime[key1][key2]
		end
	end
	print "Test init is over\n\n"
end
def test(array,dime)
	array.each do |arr|
		dime[arr[0].chr][arr[1].chr]=Integer(arr[2].chr)
	end
	puts "Testing"
	ALL.each do |key1|
		ALL.each do |key2|
			print key1+key2+" value="
			puts dime[key1][key2]
		end
		print "\n"
	end
	print "Test is over\n\n"
end

init(dimension)
test(ARGV, dimension)
#############################################
then the result will be

      A  B  C  D  E
A    3  3   9  7   0
B    3  3   9  7   0
C    3  3   9  7   0
D    3  3   9  7   0
E    3  3   9  7   0

please tell me why i am wrong?
I thought the "last" decide the whole volume
like EC9 make C volume 9
EA3 make A volume 3
please help me~
thank you so much~