public Person(string name, int age)
public void IntroduceYourself()
{Console.WriteLine("Hello! I am {0}, I am {1} years old.",
public override string ToString()
{return"Person name:"+this.name+"; Person age:"+this.age;}
public static void Main()
Person firstPerson = new Person("Gosho",10);
firstPerson.Age = firstPerson.Age + 10;
firstPerson.IntroduceYourself();