I fyou ment to print the string "aaa" of the array (and not of the hash as in the example you gave), then do this:

print "string:", $java{aaa}[0];
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for adding elements tothe array:

push(@{$java{aaa}}, $element);

# or:
$java{aaa}[$index] = $element;
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These are elementry things and I suggest you read the Tutorials.

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