public class TestInterface {
	public static void main(String[] args) {
		D d = new D();
		TestInterface t = new TestInterface();
		t.test1(d);// A a = new D();
	}
	public void test1(A a) {
	}
}
interface A {
	int I = 0;
	void method();
}
class D implements A {
	@Override
	public void method() {
	}
}