serializable class

First, what is deep replication? What is shallow copy?Baidu told me--------------->Shallow copy: After copying an object, the base type is recreated, and the reference type points to the reference referred to by the original object;Deep copy: When

Serialversionuid the serialization mechanism for Java. In simple terms, the serialization mechanism of Java is to verify version consistency by judging the serialversionuid of the class. When deserializing, the JVM compares the serialversionuid in

1. SerializationSerialization: Serializing object Persistence stores an object in a field in a file or databaseDeserialization: Restoring a file to an objectRole:1. Permanently save data2. Transmitting dataThe class that corresponds to the object to

Serialization and deserialization of enumerationsAt serialization time, Java simply outputs the name attribute of the enumeration object to the result, while deserializing it by Java.lang.Enum's valueof method to find the enumeration object by

When designing a type, the designer must solemnly decide whether to allow instance serialization of the type. The type is not serializable by default. For example, the following code might not work as you would expect:Internal structPoint {

The use of QT network communication is always simple to send data-receive data, the common is to send a string/byte stream, and then based on the string/byte stream to extract useful information. This can meet the actual needs in the communication

Session, also known as Session status, is the most common status in the Web system and is used to maintain information related to the current browser instance. For example, we can put the username of the logged-on user in the Session, so that we can

I. The concept of serialization and deserialization　　The process of converting an object to a sequence of bytes is called serialization of an object .　　The process of reverting a sequence of bytes to an object is called deserialization of the object

First, Java.io.File class1. He represents a file or directory on disk2, he has a number of internal packaging methods, you can view this file or directory of some informationWhether the file/directory exists, the file or directory, the size of the

. NET framework 4 was finally released in the next hop. At an accidental opportunity, I saw anytao's [what you must know. net] 33rd back, in-depth. net 4.0, lazy . I have not seen it in. net Framework 4.0 beta2's lazy implementation does not know

To put it simply, Java's serialization mechanism verifies version consistency by judging the serialversionuid of the class at runtime. During deserialization, the JVM compares the serialversionuid In the byte stream with the serialversionuid of the

. NET framework 4 was finally released in the next hop. At an accidental opportunity, I saw anytao's [what you must know. net] 33rd back, in-depth. net 4.0, lazy . I have not seen it in. net Framework 4.0 beta2's lazy implementation does not know

Class Test{Int ID;String name;Char [] chars = "ABCD". tochararray ();}Declared as serializable:[Serializable]Class Test{Int ID;String name;Char [] chars = "ABCD". tochararray ();}Then, in the conversion area:Memorystream stream = new memorystream ();

Description of serialVersionUID in Java: To maintain version compatibility during serialization, that is, during version upgrade, deserialization still maintains the uniqueness of objects. There are two generation methods: One is the default 1L, for

In order to transmit data, we need to serialize the entity class as the carrier, so we have a good introduction to serialization. I feel it is easy to introduce the following introduction!1. What is serialization?Serialization is the process of

Difference C # two properties (Property and Attribute) in C # Have two properties in C #: Property and Attribute, respectively, both Chinese meanings include features and attributes, but their usage is different. For the sake of difference, this

Overview: Serialization refers to the process of converting the current state of an object into a stream of bytes, and deserialization) it refers to the inverse process of the serialization process, which converts the byte stream into an object. It

Serialize a class /// /// Serialization/// /// structure information /// Public static byte [] serialize (Object OBJ){Iformatter informatter = new binaryformatter ();Memorystream STM = new

Q: display a winforms screen)It takes some time for my application to start. I want to display a pop-up screen (like in Visual Studio. NET and office applications) when the application continues to load ). The Toolbox does not contain such controls.

MemberwisecloneMethod To create a superficial copy, specifically to create a new object, and then copy the non-static fields of the current object to the new object. If the field is of the value type, perform a step-by-step copy on the field. If the