Programmer Think

Java basic syntax notes Comments will not be executed ​ 1. Single line notes: notes one line of text// ​ 2. Multiline comment: comment a paragraph of text / **/ ​ 3. Document comments: / * **/ identifier ​ 1. Identifier: the name used in user programming. Class name, variable name and method name are all called identifiers ​ 2. Naming ...

I Shell background 1.1 GNU plan Tips: The GNU Project is a free software, mass collaboration project that Richard Stallman announced on September 27, 1983. Its goal is to give computer users freedom and control in their use of their computers and computing devices by collaboratively developing and publishing software that gives everyon ...

Introduction to C language BCPL->newB->C->UNIX->Minix->linux->gcc C Language was born in 1970-1973 In 2011, in Ken.Thompson and Dennis.Rich( c It is written under the guidance of the father of language and belongs to the United States Bell Labs. C Language is specially designed to write the operating system, so it is nat ...

BC11 student basic information input and output describe Input a student's student number and 3 subjects (C language, mathematics, English) scores in turn, and output the student's student number and 3 subjects' scores on the screen (Note: the scores shall be rounded and 2 decimal places shall be reserved). Data range: student number mee ...

Write before: Continue to record your MyBatis learning journey. If you don't understand it, it is recommended to read it first Previous blogs , detailed codes can be found in My Gitee warehouse SSM learning Clone download learn to use! 3.11 annotation development 3.11.1 notes MyBatis can also be developed with annotations to reduce the writi ...

Conversion operator This section introduces three conversion operators of RxJava: map operator, flatMap operator and scan operator. map operator The map operator accepts a conversion function, applies the conversion function to each element in the message flow ejected by Observable, and the converted result pops up from the message flow. The ...

Tell me about this website Auto home is the ancestor website of anti climbing. The development team of this website must be good at the front end. Starting to write this blog on April 19, 2019, it is not guaranteed that this code will survive until the end of the month. I hope that the crawler coder will continue to fight against cars later. ...

Java Memory Model Thread synchronization Thread synchronization mechanism is a set of data access mechanism suitable for coordinating threads, which can ensure thread safety The thread synchronization mechanism provided by the java platform includes lock, volatile keyword, final keyword, static keyword, and related API s such as obje ...

preface According to the contents of Chapter 2, the second chapter mainly talks about the writing and calling of functions, which is basically the same as that of C language. Here we focus on recording what we didn't learn when learning C language. We'd better know an application scenario when we learn something. The book gives specific ...

Java programming rules In our work and study, the specification of writing code can not only improve the cleanliness of the code and facilitate reading, but also help us read other people's code and improve our ability. This article provides general guidance for code writing and can help you with good program design. 1.1 programming rules (1 ...