Ok, assuming that the arrays will be mapped element for element without mixing and matching, you can do something like this:

use strict;
use warnings;

my @array1 = ('A','B','C','D');
my @array2 = ('1','2','3','4');
my %hash1;

foreach my $key (@array1){
    $hash1{$key} = shift(@array2);
}


for my $keys ( sort(keys %hash1 )) {
    my $value = $hash1{$keys};
    print "$keys => $value\n";
}
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Hope this helped. Regards, Jeff