class Car

{

    public string name;

    public int age;

}

public class Cars: IEnumerable

{

    Car[] acrArr = new Car[4];

    public Cars()

    {

        acrArr[0] = new Car() { name = "1", age = 10 };

        acrArr[1] = new Car() { name = "2", age = 20 };

        acrArr[2] = new Car() { name = "3", age = 30 };

        acrArr[3] = new Car() { name = "4", age = 40 };

    }

    public IEnumerator GetEnumerator()

    {

        return this.acrArr.GetEnumerator();

    }

}

foreach (Car ccc in new Cars())

{

    console.writeLine(ccc.age.ToString() + "\r\n");

}