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Take a look at the deep understanding of the JVM, and summarize the questions standing in the interview 14.CLASS file Structure1.Class file is a set of 8-bit byte (1byte = 8bit) based on the unit of the binary stream, there is no separator, in the

The cross-platform nature of Java because it has virtual machines for different platforms. 1.2 Java Virtual machine The main task of the Java Virtual machine is to load the class file and execute the bytecode. As you can see from the figure below,

To support Cross-platform features, the Java language uses source code to compile intermediate bytecode, and then the JVM of each platform interprets how it executes. Bytecode is described in a completely platform-independent manner, Java only gives

Include and require are two basic ways to introduce files in PHP. There's nothing wrong with using include and require directly in small scale development, but it can cause a lot of include and require accumulation in large projects. Such code is

A Introduction to Java Technology system:The Java technology architecture consists of the following components: Java programming language Java virtual machines on a variety of hardware platforms class file format Java API Class

Java Virtual machineJava Virtual machine is a Java file generated by the class file, the class file is the bytecode, the JVM can explain the bytecode becomes the machine code of the target machine, so the Java program can be compiled once and then

Dynamically creating a control on. NET with a string is achieved by reflection. First, use the System.Type.GetType method to get the type instance of the control specified in the string. Here you need to pay attention to the syntax of this string,

Network communication is mostly based on TCP/IP, while TCP/IP is based on IP address, so the computer can only recognize the IP address such as "202.96.134.133" when communicating on the network, but cannot know the domain name. We can't remember

Each IP address can have a host name that consists of one or more strings separated by a decimal point. With the hostname, do not memorize each IP device IP address, just remember the relative intuitive meaningful host name on the line. This is the

This article is transferred from https://zhuanlan.zhihu.com/p/25713880. Basic concepts of the JVMThe Chinese name of the JVM is called a Java Virtual machine, which is a virtual computer run by software technology that simulates a computer.The JVM

I. Overview of the reflection mechanismThe Java reflection mechanism is a running state in which all the properties and methods of this class can be obtained for any class, and any one of its properties and methods can be called for any object. This

Hibernate profile properties and draw net source buildingCore Profile Common Configuration PropertiesEnterprise: 217 1793 408Property DescriptionHibernate.connection.driver_class the driver class for the specified databaseHibernate.connection.url

Hibernate profile properties and draw net source buildingCore Profile Common Configuration PropertiesEnterprise: 217 1793 408Property DescriptionHibernate.connection.driver_class the driver class for the specified databaseHibernate.connection.url

The result of code compiling from local machine code to bytecode, is a small step in the development of storage format, but it is a big step in the development of programming language. Computers only know 0 and 1, so our program needs to be

One: Java class loading and initialization Class 1.1 Loader (class-loaded tools) 1.2 The preparation required for Java to work with a class II: Java in Rtti 2.1: Why run-time type information is used (that is,

Hibernate is an open-source framework for a thorough ORM (Object relational Mapping, objects relational mapping).Let's take a look at the top-level view of the Hibernate architecture given by the official documentation:Where the po=pojo+ mapping

the big version of PHP is divided into three main branches: PHP4/PHP5/PHP6Among them, PHP4 because too old, the poor support of OO has been basically eliminated, please disregard PHP4.PHP6 because there is no application on the production line, but

PHP Kernel Exploration: namespacesNamespaces are a special type of scopeThank you for reference or the original www.php-internal.com server June spent a total of 81.974 MS 3 database queries, and strive to provide you with this page. Try reading

Niche, in the case of Java reflection just stay on the basis of simple and practical, let's combine the simple case to understand the Java reflection1. Prepare the test prepare two classes and a test class with the Main method Test1 class

Hibernate Mapping file in detail2010-09-02 19:03:33| Category: Hibernate learning | Report | Font size Subscription The mappings between Hibernate's persistence classes and relational databases are usually defined with an XML document. The