There are several problems in your code:

my @array = join(' ' , keys %num) . "\n";
[download]

You apply a string value (scalar) to an array. It looks like you are trying to print it. You probably want to do this:

my @array = keys %num;
[download]

There is a simpler way to do realize your program:

my @num = ();
[download]

It's easier to use an array, instead of hash for your program.

while(scalar @num < 5){
  push @num, int(rand(50) + 1);
}
[download]

or, even easier:

push(@num, int(rand(50) + 1)) for(1..5);
[download]

print join(' ' , @num), "\n";
[download]

my $sum = 0;

for(@num){
  $sum += $_;
}

print "The sum is: $sum\n";
[download]

Or, the final code:

my @num = ();

push(@num, int(rand(50) + 1)) for(1..5);

my $sum = 0;
for(@num){
  $sum += $_;
}

print join(' ' , @num), "\n";
print "The sum is: $sum\n";
[download]

Or, group the loops:

my @num = ();
my $sum = 0;

for(1..5){
  my $num = int(rand(50) + 1);

  push(@num, $num);
  $sum += $num;
}

print join(' ' , @num), "\nThe sum is: $sum\n";
[download]

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.