Var and Dynamic Keyword

 void main() {

  print("Welcome to Dart");

  String name = "Heer";

  //var
  var subject = "Maths"; // First Value Assignation will be considered

  subject = "welcome";

  var rollno = 10;

  rollno = 15;

  var section; // Dynamic Data_Type. Multiple type of data can be Override.
  //dynamic section;  // This will same work with the above statement.

  section = "D"; // String

  section = 7; // Integer

  section = false; // Boolean

  print(section);
}

/// OUTPUT:
/// Welcome to Dart
/// false