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1.Set 1.1 Hash list Hash List: You can understand that saving elements in an array is a chain table Time-key-value pairs (K and V) saved in a Hash list   The hashCode:hash algorithm, which changes variable-length data to fixed-length data, is a secure encryption algorithm but does not guarantee uniqueness. If the same object generates ha ...

preface: Hello, guys, I'm running snail rz. Of course, you can call me snail Jun. I'm a rookie who has studied Java for more than half a year. At the same time, I also have a great dream, that is, to become an excellent Java Architect one day. This SpringBoot basic learning series is used to record the whole process of learning the ...

sequence related macro and its implementation uvm_do series macro uvm_do series macros mainly include the following 8: `uvm_do(SEQ_OR_ITEM) `uvm_do_pri(SEQ_OR_ITEM, PRIORITY) `uvm_do_with(SEQ_OR_ITEM, CONSTRAINTS) `uvm_do_pri_with(SEQ_OR_ITEM, PRIORITY, CONSTRAINTS) `uvm_do_on(SEQ_OR_ITEM, SEQR) `uvm_do_on_pri(SEQ_OR_ITEM, SEQR, PRIORI ...

definition Decorator Pattern is to dynamically attach responsibilities to objects. To extend functionality, decorators offer a more flexible alternative than inheritance—— HEAD First design pattern Main role Abstract decorated Component: the most primitive object that needs to be decorated. Such as the coverage class (super ...

  Welcome to the column [the strongest in the whole network] Python system learning manual catalogue 1, Introduction to functions 2, Parameters of function 3, Local function (nesting of functions) 4, Advanced content of functions 5, Local functions and lambda   1, Introduction to functions 1. Conce ...

Code implementation of AES encryption algorithm Job objectives The AES encryption algorithm is implemented in C language and optimized to the fastest speed. Algorithm description Introduction to AES AES (Advanced Encryption Standard) is the most common symmetric encryption algorithm, also known as Rijndael encryption method. It is a block ...

Java from introduction to actual combat Summary - 4.4, JDBC 1. Introduction JDBC (Java database connectivity) is a Java API for executing SQL statements. It can provide unified access to a variety of relational databases. It is composed of a group of classes and interfaces written in Java language. JDBC provides a benchmark by which mor ...

catalogue Sentence classification in C language Branch statement (select structure) 1, if... else statement   2, switch statement   summary Sentence classification in C language Expression statementFunction call statementControl statementCompound statementEmpty statement   All statements in C language end with a semico ...

Nginx solves the c10k problem by using multiplexing IO Technology (such as epoll of Linux, kqueue of FreeBSD, etc.), but the premise is that the request of nginx cannot have blocking operation, otherwise the whole nginx process will stop serving. However, blocking is inevitable in many cases. For example, when a client requests a static file, d ...

This experiment comes from Oracle developer performance lesson 2: Module 2: What are Database Statistics? It is a repetition and interpretation of this experiment. First, create two tables for the experiment, namely bricks and colors, and generate statistical information: -- According to document Database Reference，statistics_level The defau ...