this(C#)

public Employee(string name, string alias)
{
    // Use this to qualify the fields, name and alias:
    this.name = name;
    this.alias = alias;
}
----------
public Employee(string m_name, string m_alias)
{
    // Use this to qualify the fields, name and alias:
    this.name = m_name;
    this.alias = m_alias;
}

CalcTax(this);

public int this[int param]
{
    get { return array[param]; }
    set { array[param] = value; }
}

 class Employee
        {
            private string name;
            private string alias;
            private decimal salary = 3000.00m;

            // Constructor:
            public Employee(string name, string alias)
            {
                // Use this to qualify the fields, name and alias:
                this.name = name;
                this.alias = alias;
            }
            // Printing method:
            public void printEmployee()
            {
                Console.WriteLine("Name: {0}
Alias: {1}", name, alias);
                // Passing the object to the CalcTax method by using this:
                Console.WriteLine("Taxes: {0:C}", Tax.CalcTax(this));
            }

            public decimal Salary
            {
                get { return salary; }
            }
        }

        class Tax
        {
            public static decimal CalcTax(Employee E)
            {
                return 0.08m * E.Salary;
            }
        }

        class MainClass
        {
            static void Main()
            {
                // Create objects:
                Employee E1 = new Employee("Mingda Pan", "mpan");

                // Display results:
                E1.printEmployee();
            }
        }
        /* Output: Name: Mingda Pan Alias: mpan Taxes: $240.00 */