The Difference between parseInt and valueOf of Integer

Let's take a look at the following code String s = "1"; System.out.println(Integer.valueOf(s)); System.out.println(Integer.parseInt(s)); What is the output? Yes, the same is 1. Both methods can convert numeric strings to int-type integers, but there i s a difference between the two methods. The valueOf(String s) method calls the parseInt(Strin ...

Posted on Tue, 08 Oct 2019 23:12:31 -0700 by Fender963

vue: axios secondary packaging, unified storage interface

1. Framework-based: vue2. Based on http library: axiosBasic usage: Installation via node: npm install axios 2. Create a new providers folder under the src folder of the project directory and a new http-service.js file in the folder, which contains the following code blocks: import axios from 'axios'; axios.defaults.timeout = 5000; axios. ...

Posted on Tue, 08 Oct 2019 17:52:14 -0700 by teege84

Notes 8-Binary Search Tree in Algorithms

Binary search tree lookup insert performance Orderliness-related operations Maximum key and minimum key Up and down rectification Choice, ranking Range lookup Delete operation Delete maximum and minimum keys General Delete Operation Binary search tree Unordered linked lists and ordered arrays, as previously known, are at least linear ...

Posted on Tue, 08 Oct 2019 14:33:02 -0700 by leoric1928

Using Tabs plug-in to realize multi-panel single content area

<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>utilize Tabs Plug-in implements multi-panel single content area</title> <script src="js/jquery.tabs.js"></script> <link rel="stylesheet" href="css/tab.css" media="screen"> <script src="js/jquery-1.8 ...

Posted on Tue, 08 Oct 2019 08:11:35 -0700 by php-phan

With Completable Future, asynchronous programming is less difficult!

Introduction to this article: Introduction to Business Requirements Scenarios Thoughts on Technical Design Scheme Future Design Model Completable Future Mode Actual Combat Suggestions for Completable Future Production Completable Future Performance Test Completable Future uses extensions 1. Introduction to Business Requirements Scenarios Th ...

Posted on Tue, 08 Oct 2019 07:48:43 -0700 by strangebeer

FeignClientFactoryBean for Feign Source Analysis

     springcloud-openfeign-core-2.1.1.release. Continue the previous article Enable FeignClients for Feign Source Analysis Later, the interface of FeignClient annotation is encapsulated in FeignClient FactoryBean in Spring cloud. Now let's look at the implementation of FeignClient FactoryBean.                   Figure 1 The attributes are s ...

Posted on Tue, 08 Oct 2019 06:52:53 -0700 by bradsteele

@ OneToMany(fetch = FetchType.EAGER), FetchType.EAGER's rapidly loaded BUG that causes queries to duplicate detailed data

The project uses spring data jpa, After configuring many-to-one and one-to-many table object associations, Colleagues found that there were two data inquiries from more than one party, and their data IDS were the same. At first they thought it was Ali's json serialization, because of repeated references, circular references, which led to the ...

Posted on Tue, 08 Oct 2019 04:13:50 -0700 by melbell

Talk about Deregister Instance of Nacos Naming Service

order This paper mainly studies the deregister Instance of Nacos Naming Service. NacosNamingService nacos-1.1.3/client/src/main/java/com/alibaba/nacos/client/naming/NacosNamingService.java public class NacosNamingService implements NamingService { private static final String DEFAULT_PORT = "8080"; private static final long DEFAULT_HEART ...

Posted on Tue, 08 Oct 2019 03:21:43 -0700 by Frozenlight777

c language pointer summary

1. A pointer to a single variable; 1 int a = 5; 2 int* p = &a; 3 printf("%d", *p); 2. Pointer of Array (1) Pointer of one-dimensional array 1 int a[5] = { 1,2,3,4,5 }; 2 int *p; 3 p = a; 4 printf("%d\n", a[1]); 5 printf("%d\n", *(p + 1)); 6 printf("%d", p[1]); (2) Pointer of two-dimensional array (1) Column pointer 1 ...

Posted on Tue, 08 Oct 2019 02:57:14 -0700 by Zergman

Write a simple TCP Server using libuv

libuv handles multiple IO events using event-based asynchronous callbacks So you can monitor a large number of files (socket and other file types) with a single thread.This callback-based programming style has poor readability of the code. Here's a review of the process. Three steps to create a TCP server: creating a TCP socket, binding IP&amp ...

Posted on Mon, 07 Oct 2019 23:58:45 -0700 by VinnyWolf