gistfile1.txt

public class DowncastingExample {

  public static void main(String args[]) {
    Object[] o = new Object[2];

    o[0] = new Hayvan(); // upcasting
    o[1] = new Kedi();      // upcasting

    Hayvan a2 = (Hayvan) o[0]; // downcasting
    Kedi a3 = (Kedi) o[1];           // downcasting
  }

}

class Hayvan {
  public static int x = 1;
}

class Kedi extends Hayvan {
  public static int x = 1;
}