Is Listlt;Doggt; a subclass of Listlt;Animalgt;? Why are Java generics not implicitly polymorphic?(是列表lt;狗gt;Listlt;Animalgt; 的子类?为什么 Java 泛型不是隐式多态的?)

Polymorphism vs Overriding vs Overloading(多态性 vs 覆盖 vs 重载)

Polymorphism: Why use quot;List list = new ArrayListquot; instead of quot;ArrayList list = new ArrayListquot;?(多态性:为什么要使用“List list = new ArrayList?而不是“ArrayList list = new ArrayList?)

Deserialize JSON with Jackson into Polymorphic Types - A Complete Example is giving me a compile error(使用 Jackson 将 JSON 反序列化为多态类型 - 一个完整的示例给了我一个编译错误)

why java polymorphism not work in my example(为什么 java 多态在我的示例中不起作用)

Is polymorphism possible without inheritance?(没有继承就可以实现多态性吗?)

Java- The meaning of lt;T extends Comparablelt;Tgt;gt;?(Java-lt;T extends Comparablelt;Tgt;gt;的含义?)

Java: Jackson polymorphic JSON deserialization of an object with an interface property?(Java:具有接口属性的对象的杰克逊多态 JSON 反序列化?)

Overloading in Java and multiple dispatch(Java中的重载和多分派)

Whats the use of saying lt;? extends SomeObjectgt; instead of lt;SomeObjectgt;(说lt;有什么用?扩展一些对象而不是 lt;SomeObjectgt;)

Why can#39;t you reduce the visibility of a method in a Java subclass?(为什么不能降低 Java 子类中方法的可见性?)

How does Java Object casting work behind the scene?(Java 对象转换如何在幕后工作?)

Polymorphism in jackson annotations: @JsonTypeInfo usage(杰克逊注解中的多态性:@JsonTypeInfo 用法)

What is the benefit of polymorphism using Collection interface to create ArrayList object?(使用 Collection 接口创建 ArrayList 对象的多态性有什么好处?)

Where to close a JDBC Connection while I want to return the ResultSet(我想返回 ResultSet 时在哪里关闭 JDBC 连接)

S3 Java client fails a lot with quot;Premature end of Content-Length delimited message bodyquot; or quot;java.net.SocketException Socket closedquot;(S3 Java 客户端因“内容长度分隔的消息正文过早结束而失败很多.或“java.net.SocketException 套接字关闭) - IT屋-程序员软件开发技术分享社

Exceptions, and how best to retry when a connection is reset?(异常，以及在连接重置时如何最好地重试?)

Java JDBC efficiency: How long should a connection be maintained?(Java JDBC 效率:一个连接应该维持多久?)

quot;com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failurequot; to remote database(“com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:通信链路故障到远程数据库)

JDBC - setAutoCommit for read only operation(JDBC - setAutoCommit 用于只读操作)