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Re^2: number of keys and values in a hash

by veerubiji (Sexton)
on Oct 11, 2011 at 14:47 UTC ( #930836=note: print w/replies, xml ) Need Help??

in reply to Re: number of keys and values in a hash
in thread number of keys and values in a hash

hi Its not working, it giving only one number is there but i have 148 numbers.can you tel me how to create hash table in my code.
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Re^3: number of keys and values in a hash
by pvaldes (Chaplain) on Oct 11, 2011 at 15:05 UTC
    well, of course you will need to create and fill a hash first with the desired part of your data. The code tells you exactly what you have: my %nums =( "$number", $info) is a hash with one element only, a single pair key-value. You need to iterate between all keys and all values

      Some extra notes about your code:

      while (my ($keys, $values) = each %nums) {

      is probably a little more readable than

      while ((my $keys, my $values) = each (%nums)) {

      and you could prefer also to use

      open my $file, 'formal.xml'; instead: my $file;open $file, 'formal.xml');

      and print "num: $number\n"; instead: print( "num: $number\n" );

      Hi, exactly what i am thinking is i need to fill my hash with more number of elements. now in the above code i have only one element in hash so its displaying one key.i need to iterate all keys and vaues in my hash.can you help how can i iterate all keys in my hash.

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