How to Iterate over a Two Dimensional Array in Perl


How to Iterate over a Two Dimensional Array in Perl ?

Answer

To iterate over a Two Dimensional Array in Perl, you can use nested loops or the foreach loop.



✐ Examples

1 Iterating over a 2D Array with Nested Loops

In this example,

  1. We declare and initialize a 2D array named @matrix.
  2. We use nested loops to iterate over the rows and columns of the array.
  3. Inside the inner loop, we access and print each element of the array.

Perl Program

@matrix = ([1, 2], [3, 4], [5, 6]);
foreach my $row (@matrix) {
    foreach my $element (@$row) {
        print "$element ";
    }
    print "\n";
}

Output

1 2 
3 4 
5 6 

2 Iterating over a 2D Array with 'foreach' Loop

In this example,

  1. We declare and initialize a 2D array named @matrix.
  2. We use the foreach loop to iterate over each row of the array.
  3. Inside the loop, we use another foreach loop to iterate over each element of the row and print the element.

Perl Program

@matrix = ([1, 2], [3, 4], [5, 6]);
foreach my $row (@matrix) {
    foreach my $element (@$row) {
        print "$element ";
    }
    print "\n";
}

Output

1 2 
3 4 
5 6 

Summary

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




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