How to Convert a Set of Integers to a Set of Strings in Perl

How to Convert a Set of Integers to a Set of Strings in Perl ?

Answer

In Perl, you can convert a set of integers to a set of strings by iterating over each element of the integer set and converting it to a string using the "" operator or the sprintf() function.


✐ Examples

1 Convert a Set of Integers to a Set of Strings using "" Operator

In this example,

  1. We have a set of integers named %intSet1 containing the elements 1, 2, 3, 4, 5.
  2. We create an empty set named %stringSet1.
  3. We iterate over each element of %intSet1 using a foreach loop.
  4. Inside the loop, we convert each integer element to a string using the "" operator and add it to the %stringSet1.
  5. We print the resulting %stringSet1 to standard output.

Perl Program

use strict;
use warnings;

my %intSet1 = (1 => 1, 2 => 1, 3 => 1, 4 => 1, 5 => 1);
my %stringSet1 = ();

foreach my $num (keys %intSet1) {
	$stringSet1{"$num"} = 1;
}

print "{" . join(", ", keys %stringSet1) . "}\n";

Output

{1, 2, 3, 4, 5}

2 Convert a Set of Integers to a Set of Strings using sprintf() Function

In this example,

  1. We have a set of integers named %intSet2 containing the elements 10, 20, 30, 40, 50.
  2. We create an empty set named %stringSet2.
  3. We iterate over each element of %intSet2 using a foreach loop.
  4. Inside the loop, we convert each integer element to a string using the sprintf() function and add it to the %stringSet2.
  5. We print the resulting %stringSet2 to standard output.

Perl Program

use strict;
use warnings;

my %intSet2 = (10 => 1, 20 => 1, 30 => 1, 40 => 1, 50 => 1);
my %stringSet2 = ();

foreach my $num (keys %intSet2) {
	$stringSet2{sprintf("%d", $num)} = 1;
}

print "{" . join(", ", keys %stringSet2) . "}\n";

Output

{10, 20, 30, 40, 50}

Summary

In this tutorial, we learned How to Convert a Set of Integers to a Set of Strings in Perl language with well detailed examples.


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