abdorll

void main() {
// ==================BASIC USAGE
  // A bool variable can have two values: true or false.
  bool isDartFun = true;
  bool isProgrammingEasy = false;
  bool isRaining = false;
  bool isSunny = true;

  
  // ==================BOOLEAN PROPERTIES

abdorll

void main() {
  // ==================BASIC USAGE 1.

  // Creating a list of integers
  List<int> numbers = [1, 2, 3, 4, 5];

  // Creating a list of strings
  List<String> fruits = ['apple', 'banana', 'cherry'];

  // Adding elements to a list

abdorll

void main() {
  // Creating a map of key-value pairs (int to String)
  Map<int, String> studentData = {
    3620301111: 'Ololade',
    3620302222: 'Chukwuemeka',
    3620303333: 'Umar',
  };

  // Accessing values using keys
  String ololadeName = studentData[3620301111]!; // 'Ololade'

abdorll

class EachTitledNameModel{
String? letterTitle;
List<String>? nameList=[];
EachTitledNameModel ({this.letterTitle, this.nameList});
}


  
List<EachTitledNameModel> getNameTitlesWithNames(List<String> nameList){
List<EachTitledNameModel> sortedNameWithTitle = [];

abdorll

class EachTitledNameModel{
String? letterTitle;
List<String>? nameList=[];
EachTitledNameModel ({this.letterTitle, this.nameList});
}
  
List<EachTitledNameModel> getNameTitlesWithNames(List<String> nameList){
List<EachTitledNameModel> sortedNameWithTitle = [];
  nameList.sort();
for(int i = 0; i<nameList.length; i++){

abdorll

void main() {
  getNameTitlesWithNames(childNames).forEach((e){
    print("\n${e.letterTitle!}");
    print(e.nameList);
  });
}

class EachTitledNameModel{
String? letterTitle;
List<String>? nameList=[];

abdorll

void main() {
  getNameTitlesWithNames(childNames).forEach((e){
    print("\n${e.letterTitle!}");
    print(e.nameList);
  });
}

class EachTitledNameModel{
String? letterTitle;
List<String>? nameList;

abdorll

// ========= SYNTAX 
class ClassName {
// properties or attributes...
//...
// methods or functions...
}


//======== EXAMPLE
//======== EXAMPLE

abdorll

class Student {
  // ========== Properties (Attributes of a stident)
  String? name, department;
  int? age, matricNumber;
  double? gpa;
  
  // ========== Methods (Actions a student can do)
  // Methods 1: switchDepartment
  void switchDepartment(String newDepartment) {
    department = newDepartment;

abdorll

class Employee {
  String? name;
  int? age;
  String? department;
  double? salary;

  // Constructor
  Employee(String name, int age, String department, double salary) {
    this.name = name;
    this.age = age;