Please don't use this JSON package in JDK 7 +!
Source: mAysWINd
www.cnblogs.com/mayswind/p/9222245.html
Introduction to JSON Lib
Json lib is a commonly used Json Library in Java before. The last version is 2.4, which supports JDK 1.3 and 1.5 respectively. The last update time is December 14, 2010.
Although it has not been maintained for many years, search on search engines“ Java Jso ...
Posted on Sun, 14 Jun 2020 22:50:12 -0400 by m00gzilla
Learn Java design mode again: real battle sharing mode: provide activity and inventory information query scenarios based on Redis seckill
Author: little brother FuBlog: https://bugstack.cn
Precipitation, sharing, growth, so that they and others can have a harvest! 😄
1, Foreword
programmer 👨💻 What is the context?
In many cases, most of the programming and development personnel only focus on the implementation of the function, as long as they have written this part of the req ...
Posted on Sun, 14 Jun 2020 22:21:04 -0400 by BPWheeler
Shell syntax specification
ver: 1.0
Blog: https://www.cnblogs.com/Rohn
This paper introduces some syntax specifications of Shell programming. The main reference is Google's Shell syntax style.
catalog
background
Which Shell to use
When to use Shell
notes
Top level notes
Function notes
TODO comments
format
indent
Line length and long string
The Conduit
l ...
Posted on Sat, 13 Jun 2020 21:45:00 -0400 by pjc2003
Big one code discrete mathematics set relation determination
The judgment of the relation between big one code and discrete mathematics set
1. Program design ideas
2. Problems encountered in the process of programming and debugging and their solutions
3. Program code and operation results
4 Summary (experience)
5. References
1. Program design ideas
1. F ...
Posted on Sat, 13 Jun 2020 21:34:12 -0400 by phdatabase
Graph Selection Function Implementation of Qt C omponent QScrollArea
1. Basic Information
Programming language: C++.
Visualization Platform: Qt
Main components: QScrollArea, QLable
2. Key Points
1.QScrollArea
(1) The code for adding pictures with QScrollArea is as follows:
QScrollArea scrollArea;
QLabel imageLabel;
QPixmap pixMap;
imageLabel.setPixmap(pixMap);
scrollArea.setWid ...
Posted on Sat, 13 Jun 2020 12:58:50 -0400 by Nilanka
C/C++ Programming Notes: C Language Performance Management System!Chain-structured Management System Source Sharing
Recently, many students need to complete their own C language course design because of the requirements of the school, so many people chat with me privately or ask me the most questions are "Student Performance Management System". In fact, when you write more items, you will find that: in fact, all kinds of management systems can not ...
Posted on Sat, 13 Jun 2020 12:13:17 -0400 by T Horton
Read csv and Excel data with pandas
This article uses real stock data as an example to teach you how to read common data files in Python.
Content:
Read csv data
Read Excel data
Merge multiple tables
Data file download address:
CSV data file nasdaq-listings.csv
https://raw.githubusercontent.com/fishstar/Data-Analysis-Practice/master/import%26manage_data_in_Python/nasdaq-listings ...
Posted on Sat, 13 Jun 2020 06:55:15 -0400 by markepic
The creation and derivation of learning note process and thread in Linux operating system
1, Foreword
In the previous article, we analyzed the unified structure task of processes and threads in the kernel_ Struct, this article will continue to analyze the process, thread creation and derivation process. First, it introduces how to edit a program into an execution file and finally into a pr ...
Posted on Fri, 12 Jun 2020 23:34:39 -0400 by prashanth0626
The use of ThreadLocal in Java Concurrent Programming and source code analysis
The use of ThreadLocal in Java Concurrent Programming and source code analysis
Create ThreadLocal and its operation
Create ThreadLocal
Perform the corresponding operation of ThreadLocal
ThreadLocal initial value setting
ThreadLocal delay setting
ThreadLocal subclass InheritableThreadLocal
ThreadLoc ...
Posted on Fri, 12 Jun 2020 03:08:19 -0400 by SueHubert
Python data structure and algorithm -- binary search tree
What is binary search tree
Binary Search Tree (also: Binary Search Tree, binary sort tree) it is either an empty tree or a binary tree with the following properties: if its left subtree is not empty, the values of all nodes on the left subtree are less than the values of its root nodes; if its right subtree is not empty, the values of all nodes ...
Posted on Fri, 12 Jun 2020 02:29:35 -0400 by WebbieDave