My god? It turns out that this is the correct implementation of multithreading
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 ...
Posted by Ammar on Tue, 18 Jan 2022 07:27:02 +0100
Java 1.8 new feature Stream
What is stream? Stream regards the set of elements to be processed as a stream. In the process of streaming, the Stream API is used to operate the elements in the stream, such as filtering, sorting, aggregation, etc.
Stream s can be created from arrays or collections. There are two kinds of operations for convection:
Intermediate operations r ...
Posted by madwormer2 on Tue, 18 Jan 2022 07:11:36 +0100
Programmer code interview guide (written by Zuo Chengyun) learn ing to punch in
catalogue
Chapter 1 stack and queue
CD5 design the stack of getMin function
describe
Realize a stack with special functions, and then realize the operation of returning the smallest element in the stack on the basis of realizing the basic functions of the stack.
Enter Description:
In the first line, enter an integer N, which represe ...
Posted by squariegoes on Mon, 17 Jan 2022 20:15:03 +0100
web development technology training school, how should front-end development prepare for interview
function
call
Syntax: FN call(obj,…args)Function: execute fn, make this obj, and pass the following n parameters to fn
Function.prototype.myCall = function (obj, ...args) {
if (obj == undefined || obj == null) {
obj = globalThis
}
obj.fn = this
let res = obj.fn(...args)
delete obj.fn
return res
}
value = 2
let foo = { ...
Posted by korion on Mon, 17 Jan 2022 10:51:49 +0100
Sword finger Offer summary part II
Interview question 16: integer power of value Title: implement the function double power(double base,int exponent) to find the exponent power of the base. Library functions must not be used and large numbers do not need to be considered. Implement Pow function in C library function.
bool g_InvalidInput=false;
double power(double base,int expon ...
Posted by nivosh on Sun, 16 Jan 2022 20:44:37 +0100
web development source code, module notes that a qualified junior front-end engineer needs to master
Concept: Redis is an open source high-performance key value pair database developed in C language.
features:
There is no necessary connection between the dataThe internal uses single thread mechanism to workHigh performanceMulti data type support
String type stringList type listHash type MapCollection type SetOrdered collection type Sorted ...
Posted by Mce on Sun, 16 Jan 2022 19:04:38 +0100
Interview questions in vue
The difference between v-if and v-show
v-if controls the explicit and implicit of elements by controlling the existence of dom nodes;v-show sets the display style of DOM elements. block is displayed and none is hidden;
Why use key in v-for
When v-for updates the rendered element queue, it will judge whether a value has been modified accordin ...
Posted by jon2396 on Sun, 16 Jan 2022 12:39:07 +0100
bootstrap front-end development, use of CSS inline style
**1, * * background color
Attribute name: background colorFunction: add background color decoration in the box areaLoading area: load the background color within the borderAttribute value: color name, color value
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="wi ...
Posted by mr_tron on Sun, 16 Jan 2022 12:06:40 +0100
web development course, JavaScript naming identifier specification
Get geographic location information using HTML5
How to use HTML5 geolocation
For example, geoml5 supports more precise location functions on modern handheld devices, especially HTML5. First, we need to check whether the user's device browser supports geographic positioning, and if so, obtain geographic information. Note that this feature may ...
Posted by Gregadeath on Sun, 16 Jan 2022 10:32:27 +0100
A Tencent WXG interview question
Problem: two billboards and five advertisers design an algorithm. The number of advertisements of five advertisers in a period of time is 1:2:3:4:5. Note that two billboards cannot broadcast the same advertisement at the same time.
Considering that there is only one billboard, you only need to select the corresponding advertisement according t ...
Posted by saad|_d3vil on Sun, 16 Jan 2022 07:44:33 +0100