The answer for it is explained in the below example.
- Abstract class constructors are used to instantiating class level variables.
- Abstract class constructors are called from the derived class constructors.
- Use base(arg list); for it.
abstract class MyClass { int variable; public MyClass(int variable) { this.variable = variable; Console.WriteLine("abstract class variable={0}",variable); } public abstract void aMethod(); public int Variable { get { return Variable; } set { Variable = value; } } } class MySubClass : MyClass { int variable; //calls the base class contructor MySubClass (int variable):base(variable) { this.variable=variable; Console.WriteLine("MySubClass constructor aVar={0}",variable); } static void Main() { MySubClass sc = new MySubClass(100); Console.WriteLine(sc.Variable.ToString()); } }