Eclipse+Java+Swing+Mysql to implement movie ticket purchase system [recommended collection]
catalogue 1, System introduction 1. Development environment 2. Technical selection 3. System functions 4. Database 5. Project screenshot 2, System display 1. Registration system 2. Log in to the system 3. User welcome interface 4. Users - Movie ranking 5. User - ticket purchase information 6. UUTF-8...
Posted by pelleas1022 on Tue, 21 Sep 2021 17:06:51 +0530
Use and advanced of Arthas
General State Arthas (Arthas) what can I do for you? Arthas It is an open source Java diagnostic tool of Alibaba, which is deeply loved by developers. When you encounter the following similar problems and are helpless, Arthas Can help you solve: 1. Which jar package is this class loaded from? UTF-8...
Posted by bradsteele on Wed, 22 Sep 2021 01:27:20 +0530
The way of internship growth -- SpringBean 1: what is the meta information of BeanDefinition? In addition to the Bean name and type, which Bean meta information deserves attention?
What is the BeanDefinition meta information? Here is a picture of Mr. Ma When I first started learning Spring, I configured it in XML, so I probably know what it means. Generally, we all configure BeanDefinition in XML Let's take a look at the construction of BeanDefinition Construction of BeanUTF-8...
Posted by deception54 on Wed, 22 Sep 2021 02:56:26 +0530
[summary] Java set (Map)
Map 01 / HashMap In JDK8, the bottom layer of HashMap is realized by "array + linked list + red black tree". When learning the principle of HashMap, we should focus on its data structure, put process and capacity expansion mechanism. Source code interpretation: Data structure: At the beginning,UTF-8...
Posted by prent327 on Wed, 22 Sep 2021 03:33:42 +0530
6-RabbitMQ practice-1-RabbitMQ introduction and environment construction
6-RabbitMQ practice-1-RabbitMQ introduction and environment construction What is a message queue? Message queue is an asynchronous communication mode between programs. The sender and receiver of messages do not need to interact with message queue at the same time. The message is kept in the quUTF-8...
Posted by Goins on Wed, 22 Sep 2021 04:47:02 +0530
What is forkJoinPool suitable for cpu intensive
What is forkJoinPool suitable for cpu intensive 1. Without synchronization, each worker thread maintains its own work queue without sharing a queue, and there is no need for synchronization measures such as locking 2. The number of threads should correspond to the hardware to minimize the perfoUTF-8...
Posted by fighnight on Wed, 22 Sep 2021 09:44:13 +0530
This is enough for concurrent programming
Thread pool Thread pool: a pool that manages threads. Why use thread pools? Reduce resource consumption. Reduce the consumption caused by thread creation and destruction by reusing the created threads.Improve response speed. When the task arrives, the task can be executed immediately without waUTF-8...
Posted by wdallman on Wed, 22 Sep 2021 18:36:37 +0530
♥ Enter the data type of TypeScript ♥
Foreword: no matter what language we are learning, we need to understand how to define a variable or Function. Today, let's take a look at the data types of TypeScript. 1, Difference between Ts and Js As we all know, JavaScript is a scripting language, and its official name is ECMAScript (becauUTF-8...
Posted by sonicfusion on Wed, 22 Sep 2021 19:09:45 +0530
ArrayList is not thread safe
new ArrayList() will create an Object array with a capacity of 10. Each expansion of ArrayList is half of the original (oldcapacity + (oldcapacity > > 1)). ArrayList is thread unsafe. ArrayList thread unsafe code import java.util.ArrayList; import java.util.List; import java.util.UUID; /** * ArUTF-8...
Posted by danielson2k on Wed, 22 Sep 2021 19:19:28 +0530
Three implementations of Java multithreading
Implementation of multithreading mode 1: inherit Thread class Method introduction Method nameexplainvoid run()After the thread is started, this method will be called and executedvoid start()When this thread starts executing, the Java virtual opportunity calls the run method () Implementation stUTF-8...
Posted by lisawebs on Wed, 22 Sep 2021 19:27:20 +0530