Article directory buffered stream 1 Overview 2. Efficiency test byte buffer stream character buffer stream Conversion flow Character encodings and character sets Character Encoding character set InputStreamReader class Specify encoding to read OutputStreamWriter class Specify encoding to write object stream ObjectOutputStream class Serialization operation ObjectInputStream class print stream This article mainly introduces the basic concepts […]
Tag: buffer
[C language] Design a ring buffer in C language. When half of the ring buffer is occupied and unprocessed, it prompts that 50% is used.
InsCode AI Creation Assistant #include <stdio.h> #include <stdlib.h> #defineBUFFER_SIZE 10 int buffer[BUFFER_SIZE]; // Ring buffer array int readIndex = 0; // Buffer read index int writeIndex = 0; // Buffer write index int count = 0; // Buffer occupancy counter void enqueue(int data) { if (count == BUFFER_SIZE) { // buffer is full printf(“Buffer is […]
[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 […]
stm32 serial communication–use ring queue buffer to receive strings
stm32 serial communication—use receiving string The concept of circular queue Application of ring queue in serial communication Program implementation Application case: Smart car Bluetooth remote control The concept of circular queue A queue is a linear table with restricted operations, with fixed inputs and outputs, and a first-in-first-out (FIFO) feature. A circular queue is a […]
Buffer channel and limit the number of goroutine concurrency
Article directory 3.7.1 Used as counting semaphore 3.7.2 Use cache channel + sync.WaitGroup to limit the number of concurrencies (similar to the previous section) To limit the concurrency of goroutine, Be sure to block the main goroutine! Be sure to block the main goroutine! Be sure to block the main goroutine! See the last example. […]
[MySQL Architecture] SQL execution process and buffer pool
Article directory 1. SQL execution process 2. Database buffer pool (Buffer Pool) 2.1 Buffer pool overview 2.2 How to read data from the buffer pool 2.3 View and set the size of the buffer pool 2.4 Multiple Buffer Pool instances 2.5 Extended questions 1. SQL execution process Query cache: Because query efficiency is often not […]
Ring buffer based key interrupt reading
1. Goal Through previous studies, I learned the basic GPIO input and output and serial port. Next, I used a small demo to learn to introduce external interrupts. That is to say, the key status is read by setting an external interrupt on the key. When the key is pressed, the LED light turns on, […]
ArcGIS API for Javascript calculates length, area, distance and buffer in different coordinate systems
ArcGIS API for Javascript has a variety of methods for calculating length, area, etc., which we often get confused. Today we will briefly review the applicable scenarios of each method. 1. Calculate the length import * as geometryEngine from ‘@arcgis/core/geometry/geometryEngine’ import * as geodesicUtils from ‘@arcgis/core/geometry/support/geodesicUtils’ /** Calculate length * @param {Geometry} geometry geometry * […]
[IO] JavaIO stream: byte stream, character stream, buffer stream, conversion stream, serialization stream, etc.
Personal profile: Rising star creator in the Java field; Alibaba Cloud technology blogger, star blogger, expert blogger; currently on the road to Java learning, recording the learning process ~ Personal homepage: .29.’s blog Learning Community: Go in and have a look~ IO stream JavaIO 1. Get to know IO 2. FileOutputStream(write) 3. FileInputStream(read) 4. Java […]
[C Language] while loop and input buffer
Directory Preface while loop infinite loop break continue input buffer Conclusion: This article about while loop is over. If you find it useful, please don’t be stingy with your likes and attention, thank you for your support! ! ! Foreword In life, we often need to do the same thing repeatedly, such as studying day […]