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sealed method in c#

Wide-eyed Wolf answered on June 22, 2022 Popularity 10/10 Helpfulness 3/10

answer sealed method in c#

related C# sealed class

sealed method in c#

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Prevent overriding a method of a class. This is a method that is declared with
the keyword sealed and is always used with combination of override keyword. 
Derived classes will not be able to override this method as it is sealed for
overriding.
  
Example by me: 

    class Account
    {
        public int Number { get; set; }
        public string Holder { get; set; }
        public double Balance { get; protected set; } // protected property is used to avoid the access to the balance from outside the class

        public Account()
        {

        }

        public Account (int Number, string Holder, double Balance)
        {
            this.Number = Number;
            this.Holder = Holder;
            this.Balance = Balance;
        }

        public virtual void Withdraw(double amount)
        {
            if (amount > Balance)
            {
                Console.WriteLine("The amount exceeds the balance");
            }
            else
            {
                Balance -= amount;
            }
        }

    }

	namespace TestConsoleApp.Entities.AccountProject;
    sealed class SavingsAcount : Account
    {
        public double InterestRate { get; set; }

        public SavingsAcount()
        {

        }

        public SavingsAcount(int Number, string Holder, double Balance, double InterestRate) : base(Number, Holder, Balance)
        {
            this.InterestRate = InterestRate;
        }

        public void UpdateBalance()
        {
            Balance += Balance * InterestRate;
        }

        public override void Withdraw(double amount)
        {
            base.Withdraw(amount);
            //UpdateBalance();
        }
    }

    sealed class SavingsAcount : Account
    {
        public double InterestRate { get; set; }

        public SavingsAcount()
        {

        }

        public SavingsAcount(int Number, string Holder, double Balance, double InterestRate) : base(Number, Holder, Balance)
        {
            this.InterestRate = InterestRate;
        }

        public void UpdateBalance()
        {
            Balance += Balance * InterestRate;
        }

        public sealed override void Withdraw(double amount)
        {
            base.Withdraw(amount);
            //UpdateBalance();
        }
    }

With this 2 examples, you could make a third example trying to use the 
method Widtdraw of SavingsAccount if you would pretend to derivate 
SavingAccount class but you couldn't do that.

Popularity 10/10 Helpfulness 3/10 Language csharp

Source: interviewhttps

Tags: c# sealed

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Contributed on Jun 22 2022

Wide-eyed Wolf

0 Answers Avg Quality 2/10

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C# sealed class

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The sealed keyword is used to prevent unintended derivation from a class. 
A sealed class cannot be an abstract class.

Popularity 10/10 Helpfulness 1/10 Language csharp

Source: zetcode.com

Tags: c# c

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Contributed on Nov 27 2022

PrashantUnity

0 Answers Avg Quality 2/10

sealed method in c#

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