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At present, many high-performance Java RPC frameworks are implemented based on Netty, and the design principle of Netty is inseparable from Java NIO. *** 1. Buffer inheritance system As shown in the figure above, for all basic types in Java, there will be a specific Buffer type corresponding to it. Generally, we most often use ByteBuffer. ...

Recorded on November 28, 2021 Next up was the last blog post on stacks and queues Stack and queue title record (I) 232. Implement queue with stack Idea: this topic is a simulation problem to investigate the understanding of stack and queue. Because the stack is Filo (can only enter and pop up at the top of the stack), and the queue is FIFO ...

1. IO stream object IO: input output IO is used to flow data from one device to another Data files flow from disk to memory, from disk to mobile storage device, and from one computer to another Everything is bytes: any data file is composed of bytes, and bytes are the smallest storage unit in the computer (Java source code, games, music, mov ...

In daily development, there are always various interfaces. Front and rear end data transmission interfaces, third-party service platform interfaces. The front and rear data transmission interfaces of a platform generally communicate in the Intranet environment and use the security framework, so the security can be well protected. This article f ...

Java Foundation Chapter 8 String class, static keyword, Arrays class, Math class (most of the commonly used methods are listed in the article. For details of other methods, please refer to the API document) String class Overview of String class summary The java.lang.String class represents a string. All string literals (such as &qu ...

Learning objectives: 1. Understand and master the logistic regression classification method; 2. Master the effect evaluation of logistic regression model; 3. Master the application scenarios of decision tree classification. Learning content: 1. This experiment is the analysis and prediction of telecom customer churn rate. 2. Analy ...

Merge sort Merge sort principle What is merge sort? To merge and sort, we must first understand what is merging: merging two ordered sequences into one ordered sequence, which we call "merging". Idea: merge sort is to sort the sequence of numbers by using the idea of merge. According to the specific implementation, merge sortin ...

Java policy pattern In strategy pattern, the behavior of a class or its algorithm can be changed at run time. This type of design pattern belongs to behavioral pattern. In the policy pattern, we create objects representing various policies and a context object whose behavior changes with the change of policy objects. The policy object changes ...

1, Ajax (1) Introduction to Ajax          1. Introduction to Ajax          Ajax is a web development technology to create interactive web applications. Is a technology for creating fast dynamic web pages.          Ajax is ...

preface   in many background management systems, there are clear permissions and role control, and of course, there is no lack of operation log records. This article will develop a logging function based on the AOP feature of Spring. Let's record the whole development project Quick start    using the AOP feature of Spring, fir ...