Yarden Comments - Answer Overflow

But what is the difference? When I didn't use override the same output was printed. You named it "overshadowing", but what exactly the difference? it seems like a similar effect

23 replies

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•Created by Yarden on 11/20/2024 in #help

✅ override and virtual

Isn't overriding means to use the same name but change the logic in the son's class? That's exactly what was told in Java

23 replies

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•Created by Yarden on 11/20/2024 in #help

✅ override and virtual

using Microsoft.VisualBasic;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace NewClass
{
    sealed class Car : Vehicle
    {
        private static int carsCreated;
        private int id;
        Radio radio = new Radio();//Has-a
        public Car(string brand, string model, string color, int year, int numberOfWheels)
            : base(brand, model, color, year, numberOfWheels)
        {
            id = carsCreated++;
        }
        public int getID()
        {
            return id;
        }
        public string getRadioColor()
        {
            return "string";
        }
        static Car()
        {
            carsCreated = 0;
        }
        public static void Main(string[] args)
        {
            //Car car0 = Car("Mitsubishi", "Space star", "Blue", 2018);
            Car car1 = new Car("Mitsubishi", "Space star", "Blue", 2018, 5);
            Car car2 = new Car("BMW", "X5 SUV", "White", 2022, 4);
            Car car3 = new Car("Alfa Romeo", "Giulietta", "Red", 2024, 4);
            Car car4 = new Car("Suzuki", "Baleno", "White", 1996, 4);

            car1.setRadioColor("Red");

            Car[] cars = new Car[] { car1, car2, car3, car4 };

            //Iteration over the items of cars:
            foreach (Car item in cars)
            {
                Console.WriteLine("Brand: {0}, Model: {1}, Color: {2}, Year: {3}, ID: {4}", item.getBrand(), item.getModel(), item.Color, item.Year, item.getID());
                Console.WriteLine("car radio's color: {0}", item.getRadioColor());
            }

            Console.WriteLine(car1.getRadioColor());
            Console.ReadLine();
        }
    }
}

using Microsoft.VisualBasic;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace NewClass
{
    sealed class Car : Vehicle
    {
        private static int carsCreated;
        private int id;
        Radio radio = new Radio();//Has-a
        public Car(string brand, string model, string color, int year, int numberOfWheels)
            : base(brand, model, color, year, numberOfWheels)
        {
            id = carsCreated++;
        }
        public int getID()
        {
            return id;
        }
        public string getRadioColor()
        {
            return "string";
        }
        static Car()
        {
            carsCreated = 0;
        }
        public static void Main(string[] args)
        {
            //Car car0 = Car("Mitsubishi", "Space star", "Blue", 2018);
            Car car1 = new Car("Mitsubishi", "Space star", "Blue", 2018, 5);
            Car car2 = new Car("BMW", "X5 SUV", "White", 2022, 4);
            Car car3 = new Car("Alfa Romeo", "Giulietta", "Red", 2024, 4);
            Car car4 = new Car("Suzuki", "Baleno", "White", 1996, 4);

            car1.setRadioColor("Red");

            Car[] cars = new Car[] { car1, car2, car3, car4 };

            //Iteration over the items of cars:
            foreach (Car item in cars)
            {
                Console.WriteLine("Brand: {0}, Model: {1}, Color: {2}, Year: {3}, ID: {4}", item.getBrand(), item.getModel(), item.Color, item.Year, item.getID());
                Console.WriteLine("car radio's color: {0}", item.getRadioColor());
            }

            Console.WriteLine(car1.getRadioColor());
            Console.ReadLine();
        }
    }
}

This is the son's class, I override this method and used it

23 replies

CC#

•Created by Yarden on 11/20/2024 in #help

✅ override and virtual

namespace NewClass
{
    public class Vehicle
    {
        private string brand;
        private string model;
        private string color;
        private int year;
        private int numOfWheels;
        private Radio radio = new Radio();//Has-a

        protected Vehicle(string brand, string model, string color, int year, int numberOfWheels)
        {
            this.brand = brand;
            this.model = model;
            this.color = color;
            this.year = year;
            this.numOfWheels = numberOfWheels;
        }
        public int NumberOfWheels
        {
            get { return numOfWheels; }
            set { numOfWheels = value; }
        }
        protected string getBrand()
        {
            return brand;
        }
        protected void setBrand(string brand) => this.brand = brand;
        protected string getModel()
        {
            return model;
        }
        protected void setModel(string model) => this.model = model;
        public string Color
        {
            get { return this.color; }
            set { this.color = value; }
        }
        public int Year
        {
            get { return year; }
            set
            {
                this.year = value;
            }
            //get => year;
            //set => year = value;
        }
       
        public void setRadioColor(string color)
        {
            radio.setColor(color);
        }
        public string getRadioColor()
        {
            return radio.getColor();
        }        
        //public static void Main(string[] args)
        //{
        //    Vehicle vehicle = new Vehicle("1", "2", "3", 1, 2);
        //    vehicle.numOfWheels = 10;
        //    Console.WriteLine(vehicle.numOfWheels);

        //    Console.ReadLine();
        //}

    }

    
}

namespace NewClass
{
    public class Vehicle
    {
        private string brand;
        private string model;
        private string color;
        private int year;
        private int numOfWheels;
        private Radio radio = new Radio();//Has-a

        protected Vehicle(string brand, string model, string color, int year, int numberOfWheels)
        {
            this.brand = brand;
            this.model = model;
            this.color = color;
            this.year = year;
            this.numOfWheels = numberOfWheels;
        }
        public int NumberOfWheels
        {
            get { return numOfWheels; }
            set { numOfWheels = value; }
        }
        protected string getBrand()
        {
            return brand;
        }
        protected void setBrand(string brand) => this.brand = brand;
        protected string getModel()
        {
            return model;
        }
        protected void setModel(string model) => this.model = model;
        public string Color
        {
            get { return this.color; }
            set { this.color = value; }
        }
        public int Year
        {
            get { return year; }
            set
            {
                this.year = value;
            }
            //get => year;
            //set => year = value;
        }
       
        public void setRadioColor(string color)
        {
            radio.setColor(color);
        }
        public string getRadioColor()
        {
            return radio.getColor();
        }        
        //public static void Main(string[] args)
        //{
        //    Vehicle vehicle = new Vehicle("1", "2", "3", 1, 2);
        //    vehicle.numOfWheels = 10;
        //    Console.WriteLine(vehicle.numOfWheels);

        //    Console.ReadLine();
        //}

    }

    
}

This is the base class, look at the method "getRadioColor"

23 replies

CC#

•Created by Yarden on 11/20/2024 in #help

✅ override and virtual

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace NewClass { public class Vehicle { private string brand; private string model; private string color; private int year; private int numOfWheels; private Radio radio = new Radio();//Has-a protected Vehicle(string brand, string model, string color, int year, int numberOfWheels) { this.brand = brand; this.model = model; this.color = color; this.year = year; this.numOfWheels = numberOfWheels; } public int NumberOfWheels { get { return numOfWheels; } set { numOfWheels = value; } } protected string getBrand() { return brand; } protected void setBrand(string brand) => this.brand = brand; protected string getModel() { return model; } protected void setModel(string model) => this.model = model; public string Color { get { return this.color; } set { this.color = value; } } public int Year { get { return year; } set { this.year = value; } //get => year; //set => year = value; }
public void setRadioColor(string color) { radio.setColor(color); } public string getRadioColor() { return radio.getColor(); }
//public static void Main(string[] args) //{ // Vehicle vehicle = new Vehicle("1", "2", "3", 1, 2); // vehicle.numOfWheels = 10; // Console.WriteLine(vehicle.numOfWheels); // Console.ReadLine(); //} }
}

23 replies

CC#

•Created by Yarden on 10/27/2024 in #help

✅ How do I get to the graphical window (where I can drag and drop tools)

Yep I found in the end Thank you all for helping me, your conversation helped me to understand few things, so it was blessed anyway. Thank you much!

94 replies

CC#

•Created by Yarden on 10/27/2024 in #help

✅ How do I get to the graphical window (where I can drag and drop tools)

@er🎃 @SpReeD @leowest WinForms is another disgning technology of C#? It's totally newbie with this language

94 replies

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