class Vector<T> {   
	  private T x;   
	  public void set_value(T t) {   
	    x = t;   
	  }   
	  public T get_value() {   
	    return x;   
	  }   
}

public class aaa {
	public static void main(String[] args) {
         Vector<Object> v = new Vector<Object>();
         v.set_value(new String("dog"));
         System.out.println(v.get_value());
         
	}
}