Bubble Sort Implementation using Dart Programming Language

bubble_sort.dart

void bubbleSort(var L) {
  var n = L.length;
  for (var i = 0; i < n; i++) {
    for (var j = 0; j < n - i - 1; j++) {
      if (L[j] > L[j + 1]) {
        var temp = L[j];
        L[j] = L[j + 1];
        L[j + 1] = temp;
      }
    }
  }
}

//recursive
void recursiveBubbleSort_desc(var L, var n) {
  if (n == 1) return;

  for (var i = 0; i < n - 1; i++)
    if (L[i] < L[i + 1]) {
      var temp = L[i];
      L[i] = L[i + 1];
      L[i + 1] = temp;
    }

  recursiveBubbleSort_desc(L, n - 1);
}

void main() {
  print("==============Acending order=============");
  var lst = [8,1,77,12,67,5,19,4,7,10,100];
  print("Before sort lst: ${lst}");
  bubbleSort(lst);
  print("After sort lst: ${lst}");
  print("==============Decending order=========");
  var dlst = [8,1,77,12,67,5,19,4,7,10,100];
  var n = dlst.length;
  print("Before sort lst: ${dlst}");
  recursiveBubbleSort_desc(dlst, n);
  print("After sort lst: ${dlst}");
}

This is also an easier sort technique.

void main(){

List nameAndAge = [
Person("Jahangir", 41),
Person("Ibrahim", 5),
Person("Labib", 13),
Person("Tahera", 12),
Person("Jasia", 4),
Person("Safowan", 5),
Person("Sheuly", 34),
Person("Alamgir", 38),
Person("Maliha", 5),
Person("Bashira", 10),
];

nameAndAge.sort((a, b) => a.age.compareTo(b.age));
for(Person nameAge in nameAndAge){
print(nameAge);
}
}

class Person{
String name;
int age;

Person(this.name, this.age);

@OverRide
String toString() => "$name ($age)";
}