Collections

 /// List

  /// Fixed List
  /// Growable List
/// Set
/// Maps

void main()
{
  /// Fixed List -> Implementation
  //external factory List.filled(int length, E fill, {bool growable = false});

  // List<int> larr = List<int>.filled(5,0);
  // print(larr);

  // List<int> larr = List.filled(4,2);
  // larr[0] = 10;
  // larr[1] = 20;
  // larr[2] = 30;
  // larr[3] = 40;
  // print(larr[0]);

  /// for-in loops
  // for(int x in larr) {
  //   print(x);
  // }

  /// forEach loop
  //larr.forEach((x) {  print(x); },);

  /// Normal Traditional for loop
  // for(int i=0; i<larr.length; i++) {
  //   print(larr[i]); }

  /// Growable List
  // List<int> larr1 = [];
  // larr1.add(10);
  // larr1.add(20);
  // larr1.add(30);
  // larr1.add(40);
  // larr1.add(50);
  //print(larr1);

  /// Updating the value in the List
  //larr1[2] = 100;

  /// Removing the value in the List
  //larr1.remove(20); // Passing the value in the parameter which i want to remove
  //larr1.removeAt(2);  // Passing the index in the parameter which i want to remove
  //larr1.clear();  // Completely removing the list using the clear function

  /// Normal Traditional for loop
  // for(int x=0; x<larr1.length; x++) {
  //   print(larr1[x]);  }

  /// for-in loop
  // for(var x in larr1) {
  //   print(x); }

  /// forEach loop
  //larr1.forEach((x) { print(x); },);

  // var myList = new List.filled(2,0);
  // myList = [25, 63, 84];
  // print(myList);

  /// Set
  //Set<int> sarr = Set();    // First way to define Set
  //Set<int> sarr = Set.from([10,20,30],);  // Second way to define Set
  // sarr.add(11);
  // sarr.add(22);
  // sarr.add(33);
  //print(sarr);

  /// for in loop
  // for(var i in sarr)  {
  //   print(i); }

  //print(sarr.contains(30)); //Checking the inclusion of element
  //print(sarr.contains(22));

  /// Maps
  //Map<String,String> marr = Map();  // First way to define Map
  Map<String,String> marr = {   //  Second way to define Map
    "name" : "Vishal",
    "city" : "Delhi"
  };
  marr["email"] = "vishal@gmail.com"; //Adding another data in Map
  //print(marr);

  /// for in loop
  // for(String k in marr.keys) {  //Getting all the Keys
  //   print(k); }  // for in loop can give single value in one time

  // for(String v in marr.values) {  //Getting all the values
  //   print(v); }

  //marr.remove("name");  //Removing any particular data from Map
  //marr.clear();         //Completely removing the Map data using clear function
  //print(marr.length);     //Getting the length of the Map data
  //print(marr.isEmpty);      //Checking whether any data is available OR Not in Map
  //print(marr.containsKey("name"));//To check whether any particular key is Exists OR Not in Map
  //print(marr.containsValue("vishal@gmail.com"));//To check whether any particular Value is Exists OR Not in Map

  /// forEach loop
  // marr.forEach((key,value) {  // forEach loop can give multiple values in one time
  //   print(key + " : " + value);
  // },);
}