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How to get all the possible K length Substrings in a String in Perl - Step by Step Examples

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How to get all the possible K length Substrings in a String in Perl ?

Answer

To get all possible K length substrings of a string in Perl, you can use nested loops to iterate through each possible substring.

✐ Examples

1 All Substrings of Length 3 in 'Hello World'

In this example,

We create a string $str with a value of "Hello World".
We initialize an empty array @substrings to store all substrings of length 3.
We use nested loops to iterate through each possible start and end index for the substring.
Within the loops, we extract the substring using substr function and add it to the @substrings array.
Finally, we print the @substrings array.

Perl Program

$str = 'Hello World';
$k = 3;
@substrings = ();
for ($i = 0; $i <= length($str) - $k; $i++) {
  for ($j = $i; $j < $i + $k; $j++) {
    push(@substrings, substr($str, $i, $k));
  }
}
print "All substrings of length $k: @substrings\n";

Output

All substrings of length 3: Hel ell llo loo o W  Wo Wor orl rld

Summary

In this tutorial, we learned How to get all the possible K length Substrings in a String in Perl language with well detailed examples.

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