How to find the Element with Maximum Number of Occurrences in a List in Dart - Step by Step Examples

How to find the Element with Maximum Number of Occurrences in a List in Dart ?

Answer

To find the element with the maximum number of occurrences in a list in Dart, you can use a Map to count the occurrences.

✐ Examples

1 Find Most Frequent Integer in List

In this example,

We create a list named data with several integer elements.
We declare a Map to count the occurrences of each element.
We iterate through the list to populate the map with counts.
We find the element with the maximum count by iterating through the map.
Finally, we print the most common element to standard output.

Dart Program

void main() {
    List<int> data = [1, 2, 2, 3, 3, 3, 4];
    Map<int, int> count = {};
    for (var num in data) {
        if (count.containsKey(num)) {
            count[num] = count[num]! + 1;
        } else {
            count[num] = 1;
        }
    }
    int mostCommon = data[0];
    int maxCount = 0;
    count.forEach((key, value) {
        if (value > maxCount) {
            maxCount = value;
            mostCommon = key;
        }
    });
    print('Element with the maximum occurrences is: $mostCommon');
}

Output

Element with the maximum occurrences is: 3

2 Find Most Frequent String in List

In this example,

We create a list named words with several string elements.
We declare a Map to count the occurrences of each element.
We iterate through the list to populate the map with counts.
We find the element with the maximum count by iterating through the map.
Finally, we print the most common element to standard output.

Dart Program

void main() {
    List<String> words = ['apple', 'banana', 'apple', 'orange', 'banana', 'apple'];
    Map<String, int> count = {};
    for (var word in words) {
        if (count.containsKey(word)) {
            count[word] = count[word]! + 1;
        } else {
            count[word] = 1;
        }
    }
    String mostCommon = words[0];
    int maxCount = 0;
    count.forEach((key, value) {
        if (value > maxCount) {
            maxCount = value;
            mostCommon = key;
        }
    });
    print('Element with the maximum occurrences is: $mostCommon');
}

Output

Element with the maximum occurrences is: apple

Summary

In this tutorial, we learned How to find the Element with Maximum Number of Occurrences in a List in Dart language with well detailed examples.

◀ Previous Next ▶

Dart Tutorials

Dart How-Tos

How to find the Element with Maximum Number of Occurrences in a List in Dart - Step by Step Examples

How to find the Element with Maximum Number of Occurrences in a List in Dart ?

Answer

✐ Examples

1 Find Most Frequent Integer in List

Dart Program

Output

2 Find Most Frequent String in List

Dart Program

Output

Summary

More Dart Lists Tutorials