mhmadip

// OOP Principles Example in Dart with Pokemon Context

// 1. Classes and Objects
abstract class Pokemon {
  String name;
  int level;

  Pokemon(this.name, this.level);

  // 3. Abstraction (Abstract method representing a move)

mhmadip

// OOP Principles Example in Dart with Pokemon Context

// 1. Classes and Objects
abstract class Pokemon {
  String name;
  int level;

  Pokemon(this.name, this.level);

  // 3. Abstraction (Abstract method representing a move)

mhmadip

void main(){
  
 performTasks();
  
}
  void performTasks () async{
    task1();
    String task2Result= await task2();
    task3(task2Result);
  }

mhmadip

class Product{
  String _name;
  num _price;
  String _expDate;
  
  Product(this._name,this._price,this._expDate);
  
  void printDetails(){
    print('Name: $_name');
    print('Price: $_price');

mhmadip

class Object {
  int id = 0;
  String name='abc';
 Object(this.id);
  
  @override
  String toString()=> id.toString() + name;
}

void main() {

mhmadip

// classes and objects example
/*
class Car{
  int numberOfDoors=5;
  void drive(){
    print('wheels start turning');
  }

}
void main(){

mhmadip

//Enumerated types, often called enumerations or enums,
// are a special kind of class used to represent a fixed number of constant values.
//Declare an enumerated type using the enum keyword:
enum Color { red, green, blue }
//To get a list of all of the values in the enum, use the enum’s values constant.
List<Color> colors = Color.values;

void main() {
//You can use trailing commas when declaring an enumerated type.
//

mhmadip

import 'dart:io';
int sumEven(List li) {
  int sum = 0;
  for (var i in li) {
    if (i % 2 == 0) {
      sum = sum + i;
    }
    }
  return sum; 
  }

mhmadip

// Chapter 5: Control Flow Statements
void main() {
//if statment
  var testList = [2, 4, 8, 16, 32];
  print(testList);
  if (testList.isNotEmpty) {
    print("Emptying List");
    testList.clear();
  }
  print(testList);

mhmadip

 import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget { @override
Widget build(BuildContext context) {
  return MaterialApp( home: MyHomePage(),
  ); }
}
class MyHomePage extends StatefulWidget { MyHomePage();
@override
createState() => _MyHomePageState();