How to create a Two Dimensional Array in Perl - Step by Step Examples

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How to create a Two Dimensional Array in Perl ?

Answer

To create a Two Dimensional Array in Perl, you can use arrays of arrays.

✐ Examples

1 Creating a 2D Array of Integers

In this example,

We declare and initialize a 2D array of integers named @matrix with dimensions 3x3.
We assign values to the elements of the array using nested loops.

Perl Program

my @matrix;
for my $i (0..2) {
  for my $j (0..2) {
    $matrix[$i][$j] = $i + $j;
  }
}
use Data::Dumper;
print Dumper(@matrix);

Output

[[0, 1, 2], [1, 2, 3], [2, 3, 4]]

2 Creating a 2D Array of Strings

In this example,

We declare and initialize a 2D array of strings named @matrix with dimensions 2x2.
We assign values to the elements of the array using nested loops.

Perl Program

my @matrix;
for my $i (0..1) {
  for my $j (0..1) {
    $matrix[$i][$j] = "Row " . ($i + 1) . ", Column " . ($j + 1);
  }
}
use Data::Dumper;
print Dumper(@matrix);

Output

[["Row 1, Column 1", "Row 1, Column 2"], ["Row 2, Column 1", "Row 2, Column 2"]]

Summary

In this tutorial, we learned How to create a Two Dimensional Array in Perl language with well detailed examples.

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