首先你定义的SeqList是一个借口 那么他需要一个实体类才可以进行new操作 而你没有进行借口的实现，而直接对借口进行new是不可以的
导致错误: Cannot instantiate the type List<Integer> 正确写法是: List<Integer> arr = new ArrayList<Integer>();
Cannot instantiate the type List 简介:在使用java.util.List;的时候,把语句写成了:List arr = new List();导致错误:Cannot instantiate the type List正确写法是:List arr = new ArrayList(); 在使用java.util.List;的时候,把语句写成了: List<Integer> arr = new List<Integer>(); 导致错误: Cannot ins...
导致错误: Cannot instantiate the type List<Integer> 正确写法是: List<Integer> arr = new ArrayList<Integer>();
抽象类不可以实例化类成员，在实现类中实例化
Binding the height of one user control to a parent user control Binding the tooltip to the mouse position binding to a collection problem Binding to a descendant by type Binding to a Grid Column Width and Row Height Binding to a list of lists Binding to a Main Window Property Binding to ...
“Error: type name is not allowed” message in editor but not during compile [ WinSocket 2 ] Flush socket [C\C++] - how get arrow keys(correctly) using getch()? [C\C++] - how put the window in center of screen and how avoid the user resize it? [C\C++] - key up and key dow...
报错为:java.util.LinkedHashMap cannot be cast to 解决办法从json字符串转换为FdcpRes的对象中已经没有了泛型,所以可以把这个FdcpRes里的data...java.util.ArrayList; import java.util.List; /** * @author chaird * @create 2022-04-17 13:11 */ public class...字符...
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:849) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ...
(Native Method) 07-12 08:17:11.613 5418 5418 E AndroidRuntime: at android.app.AppComponentFactory.instantiateActivity(AppComponentFactory.java:95) 07-12 08:17:11.613 5418 5418 E AndroidRuntime: at androidx.core.app.CoreComponentFactory.instantiateActivity(CoreComponentFactory.java:45) 07-12 08:17...