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

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

Answer

To get all possible K length substrings of a string in Dart, 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 variable str with a value of "Hello World".
We initialize an empty list 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 substring method and add it to the substrings list.
Finally, we print the substrings list.

Dart Program

void main() {
  String str = 'Hello World';
  int k = 3;
  List<String> substrings = [];
  for (int i = 0; i <= str.length - k; i++) {
    for (int j = i; j < i + k; j++) {
      substrings.add(str.substring(i, j + 1));
    }
  }
  print('All substrings of length \$k: \$substrings');
}

Output

All substrings of length 3: [Hel, ell, llo, lo , 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 Dart language with well detailed examples.

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