You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 
davhojt c9532a6d7d docs(data-structures): correct grammar 2 years ago
..
README.md docs(data-structures): correct grammar 2 years ago

README.md

Data Structures

Instructions

Let's take a look at List, Set, and Map.

Declare and initialize following variables:

  • listNum of type List<int>, containing a list of integers. There must be at least 5 elements in the list.
  • listObj of type List<Object>, containing a list of objects. There must be at least 4 elements in the list.
  • listStr of type List<String>, containing a list of strings. There should be at least 3 elements in the list.
  • listList of type List<List<Object>>, containing a list of lists containing listNum, listObj, listStr.
  • setStr of type Set<String>, containing at least 3 strings.
  • mapStr of type Map<String, int> containing at least 3 pairs.

List

List is an array of elements:

var listNum = [1, 2, 3];
List<int> listNum = [1, 2, 3];

Set

Set is an unordered collection of unique items:

var set = {'Germany', 'Kazakhstan', 'France', 'England'};
Set<String> set = {'Germany', 'Kazakhstan', 'France', 'England'};

Map

Map is a key-value data structure:

var mapRadius = {
  'Earth': 6378.1,
  'Jupiter': 71492,
  'Moon': 1738.1,
};
Map<String, double> mapRadius = {
  'Earth': 6378.1,
  'Jupiter': 71492,
  'Moon': 1738.1,
};

No main is needed.