public class X {
    public static void main(String argv[]) {
       X1<Integer> o1 = new X1<Integer>(new Integer(4));
        System.out.println(o1.get().t);
    }
}

class X1<T> implements I<T> {
    T t;
    X1(T arg) {
        t = arg;
    }
    public X1 get() {
        return this;
    }
}

interface I<T> extends J<T> {
    I get();
}

interface J<T>  {
    J get();
}