C# 7 and .NET: Designing Modern Cross-platform Applications

Making a field static

The fields that we have created so far have all been instance members, meaning that a copy of each field exists for each instance of the class that is created.

Sometimes, you want to define a field that only has one copy that is shared across all instances. These are called static members.

In the PacktLibrary project, add a new class named BankAccount. Modify the class, as shown in the following code:

namespace Packt.CS7 
{ 
   public class BankAccount 
   { 
      public string AccountName; 
      public decimal Balance; 
      public static decimal InterestRate; 
   } 
} 

Each instance of BankAccount will have its own AccountName and Balance values, but all instances will share a single InterestRate value.

In Program.cs and its Main method, add the ...