[Question Solving] Integer is assigned a constant 1 in auto-boxing, why does == determine true and false (JDK source code, internal buffer)

Table of Contents answer: 1.low and high values in the if statement 2. What is returned in the if block 3.Outside the if statement block Summarize Question code JDK source code related source code The problem comes from the Integer exercise during the lecture The first reaction at that time was false true true There […]

STM32F103 microcontroller internal RTC real-time clock driver

1. STM32f103 series RTC function The RTC real-time clock function is a commonly used function in embedded software development. Generally, the RTC function of MCU has a year, month, day and time register, such as the STM32F4xx series. The RTC description is as follows: It can be seen that the RTC function of the F4 […]

Explore the internal mechanism of C++ assignment operator overloading: a step-by-step guide to mastering it

W…Y’s homepage Code repository sharing Foreword: In the previous blog, we have understood and learned the constructors and destructors in the initialization and cleanup modules, as well as the copy and copy functions in copy and copy. They are all important members of classes and objects. Today we are going to talk about them. Let’s […]

[Database] Internal connection, self-connection, natural connection, external connection (left, right, full)

Join table basic connection Equivalence join INNER JOIN advanced link SELF JOIN NATURAL JOIN NATURAL JOIN OUTER JOIN LEFT JOIN RIGHT JOIN RIGHT JOIN FULL JOIN s q l sql One of the most powerful features of sql is the ability to join tables in data queries. In a large project, multiple tables need to […]

13.4 DirectX internal hijacking of drawing

Compared with the instability of external drawing technology, internal drawing is more process and stable. In the Dx9 environment, the function EndScene is used to draw 3DAfter the scene, a function used to complete a series of operations to render the final image to the screen. It clears the image in the buffer, sets the […]

‘nvidia-smi is not recognized as an internal or external command, operable program or batch file

Solution ‘nvidia-smi’ is not recognized as an internal or external command, operable program or batch file Problem description On computers using NVIDIA GPU acceleration, you may encounter the following error message when trying to execute the command ??nvidia-smi??: plaintextCopy code’nvidia-smi’ is not recognized as an internal or external command, operable program or batch file Solution […]

milkv6. internal codec — mic

Article directory 1. Hardware 2. dts 3. Configuration pin board_init pin 4. Makefile 5. config 6. Add tinyalsa 7. Test results 7.1 View recording device information 7.2 Record audio 7.3 Get the recorded device on PC 7.4 Use audacity to view waveforms 1. Hardware i2s0 – adc i2s1–pdm i2s3 — dace spk_en is doubtful i2s2 […]

20-Data structure-Internal sort-Insertion sort

Introduction: Insertion sorting basically has two steps. First, obtain the insertion position through comparison, then move to vacate the position that needs to be inserted, and finally insert the value. Table of Contents 1. Direct insertion sort 1.1 Introduction: 1.2 Code 2. Half-way insertion sort 2.1 Introduction: 2.2 Code: 3. Hill sorting 3.1 Introduction: 3.2. […]