using System;

class ConstDemo {
  const double    ca = 5.0;

  private readonly double roa = 7.0;

  private readonly BankAccount
                  roba = new BankAccount("Anders");

  public ConstDemo(){   // CONSTRUCTOR
    ca = 6.0;  
  }

  public static void Main(){
    ConstDemo self = new ConstDemo();  
    self.Go(); 
  }

  public void Go(){
    ca = 6.0;   
    roa = 8.0;  
    roba = new BankAccount("Peter");  
  }
}