Set_(Collection)_Dart

 void main()

{
  //There are two ways to declare Set as shown below :
  //1) Set<Int> ratings = {}; (Here, "ratings" is name of Set)
  //2) var ratings = <Int>{};

  /*Set<int> ratings = {};
  var ratings1 = <int>{};*/

  ///NOTE : Set will always remove(will not print duplicate elements) duplicate
  /// elements from the Set elements
  var theSet = {10,20,30,40,50,60,20,70,50,10,80,30,90,100};

  print(theSet);
  print("\n");

  ///Getting the Number of Elements
  // print("Length is : ${theSet.length}");

  ///Accessing an element by index
  // print(theSet.elementAt(0));
  // print(theSet.elementAt(1));
  // print(theSet.elementAt(2));
  // print(theSet.elementAt(3));
  // print(theSet.elementAt(4));

  ///Also,you can use the first and last property to access the first and last elements respectively
  // print(theSet.first);
  // print(theSet.last);

  ///Adding an element to a set
  // theSet.add(60);
  // theSet.add(70);
  // print(theSet);

  ///Adding Multiple Elements
  // theSet.addAll([60,70,80,90,100]);
  // print(theSet);

  ///Checking the existence of elements
  // print(theSet.contains(20));
  // print(theSet.contains(300));

  ///Finding the intersection of Two elements
  // var checkSet1 = {11,12,13,14,15,16,17,18,19,20,21,22,23,24,25};
  // var checkSet2 = {21,22,14,19,23,24,25,16,26,11,27,12,28,20,29};
  // var resultSet = checkSet1.intersection(checkSet2);
  // print(resultSet);

  ///Finding the Union of Two sets
  // var oneSet = {11,12,13,14,15,16,17,18,19,20,21,22,23,24,25};
  // var twoSet = {21,22,14,19,23,24,25,16,26,11,27,12,28,20,29};
  // var resultSet1 = oneSet.union(twoSet);  //FIRST WAY
  // print(resultSet1);
  // print(oneSet.union(twoSet));  //SECOND WAY TO PRINT UNION

  ///Iterating over elements of a set using for loop
  // for(var name in theSet)
  //   {
  //     print(name);
  //   }

  ///Since the Set class has the length property that returns the number of elements of a set, you can
  ///loop over the elements using the for loop:
  for(var i = 0; i < theSet.length; i++)
    {
      print(theSet.elementAt(i));
    }
}