Programmer Think

introduction   to learn Java, we should not only learn the basic grammar, but also learn the idea of programming, in which we should understand what is "class"? What is "object"? And the most important core idea of Java, object-oriented (oop)! This idea can simplify the complex things in life. It is also used in progra ...

Click on "end of life", pay attention to the official account. Daily delivery, dry time! 1. Background Use the flowable UI that comes with flowable to make the flow chart Use the interface used by the springboot development process to complete the business functions of the process 2. Deployment and operation of flowabl ...

1. What is the service Service is a solution to realize the background operation of programs in Android. It is very suitable for performing tasks that do not need to interact with users and require long-term operationThe operation of the service does not depend on any user interface. Even if the program is switched to the background or the use ...

We all know that Java is composed of classes. There may be other classes in Java classes, which is the internal class in Java. However, there is more than one internal class in Java. There are four internal classes: ① member internal class, ② static internal class, ③ local internal class and ④ anonymous internal class. The functions of each int ...

When a spring transaction is mentioned, it is reminiscent of four basic characteristics, five isolation levels and seven communication characteristics. I'm sure most people know this, but knowing it's one thing, and using it well is another. When using Spring transactions, I've encountered several serious issues, so I'll make a self-summary her ...

Baidu cloud official website: Baidu Intelligent Cloud - Intelligent era infrastructure Baidu intelligent cloud focus on cloud computing, intelligent big data, artificial intelligence services, provide stable cloud server, cloud hosting, cloud storage, CDN, domain name registration, Internet of things and other cloud services, support API docki ...

1. Internal class overview (1) Inner class: the inner part of a class is completely nested with another structure. Those nested are called inner classes, and those nested with other classes are called outer classes. Internal class: the fifth largest member of our class; Five members: attribute, method, constructor, code block and internal ...

Redis official website: https://redis.io Redis Chinese official website: http://www.redis.cn The following is an overview of Redis data types, which can be read intuitively by using code blocks. 1, Base point 1. There are 16 Redis databases by default, and the first one is used by default. Use select to switch databases. 2. The default port ...

Preface Basic Operators These are common in most programming languages, but take them out and write one. Here, only some of the most commonly used operators are introduced, others are not commonly used to pick them up when they are used. Basic Operators 1. Common binary operators +, -, *, /,% 1. Addition Operator (Sum Operator)+ The ...

​ Personal project - Concurrent file download assistant Expected and actual time consumption of each module PSP2.1Personal Software Process StagesEstimated time (minutes)Actual time (minutes)Planningplan6030· Estimate·Estimate how long this task will take14401080Developmentdevelopment1080· Analysis·Demand analysis (including ...