Answer: Yes! Here is an example.
interface A { int get(); }
interface B { int get(); }

class D implements A {
   public int get() { return 1; }
}

class C extends D implements A, B {
   public int get() { return 2; }
}

public class TwoInterfaces {
   public static void main (String arg[]) {
      C c = new C();
      System.out.println(c.get());
   }
}