by o.orderNumber desc")
public List<Order> findAllOrder(String portfolio); 当我尝试启动该服务时,它抛出以下错误: ClassCastException: org.hibernate.hql.internal.ast.tree.SqlNode cannot be cast to org.hibernate.hql.internal.ast.tree.PathNode
E/AndroidRuntime: FATAL EXCEPTION: main java.lang.ClassCastExceptioninflate view for notification com.example.android.wearable.wear.wearnotifications/0x378
java.lang.ClassCastException
我试图用RecyclerView实现无限滚动,但我只能得到所有记录,甚至在底部滚动时也没有任何进展。看看我的代码这是我的News_Adapterprivate final int VIEW_ITEM = 1;private Context context;
// The minimum amount of items to have belo
我正在学习JAVA程序员I证书,其中有一个问题我无法理解:class A implements I{}class C extends B{}
B b = new B();A. a = (B)(I)b;C. a = (I)b;现在我知道答案是A),但我不明白,如果B类是A类的子类,那么'a‘可以等于'b’而不进行类型转换,为什么答案B)是错