包含标签：Java 的文章
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Development of Java wechat public platform (2) receiving of wechat server post message body
In the last article, we described in detail how to connect our application server and wechat Tencent server, and final…… -
Detailed summary of TCP / UDP in Java
TCP / UDP: TCP is mainly a connection oriented protocol. It includes the functions of establishing and dismantling con…… -
Queue of Java data structure (power node Java College)
Definition of queue: A queue is a linear table that allows insertion at one end and deletion at the other end. (1) The…… -
In depth analysis of JDBC and driver for database connection in Java
In depth analysis of JDBC and driver for database connection in Java understand: When a Java application establishes a…… -
Java operator summary
The following is a summary of Java operators: 1、 Arithmetic operator Note: it is not recommended to use + + and C ins…… -
Development of Java wechat public platform (4) classification of reply messages and creation of entities
The classification of messages after receiving wechat server messages was mentioned earlier. At that time, they were m…… -
Example of a method for Java to get numbers in a string through regular expressions
preface This article uses a small example to learn how to obtain numbers in a string through regular expressions in Ja…… -
On the loss of digital accuracy in Java object to JSON
phenomenon Large numbers in Java, such as 18 / 19 bit integers (long), are converted into JSON. After they are output …… -
Detailed explanation of JDBC connection database in Java
1、 Concept 1. In order to enable the program to operate the database and operate the tables in the database, each dat…… -
Detailed explanation of Hibernate naming strategy
The naming strategy of Hibernate can reduce the maintenance of database identifier naming and further reduce the amoun…… -
Java implementation of random output 300 questions four operations
If you don't have much to say, please see the code: The above is the whole content of this article. I hope the content…… -
JDBC detailed explanation of Java transaction management learning
What is a Java transaction The general idea is that transactions are only related to databases. Transactions must comp…… -
Differences in Java Tostring(), (string), valueof() method
In the actual development and application of Java projects, the basic function of converting objects into strings is o…… -
Java decomposes a positive integer into prime factors
Program analysis: to decompose the prime factor of N, first find a minimum prime number k, and then complete it accord…… -
Java self addition and self subtraction operation process
No more nonsense. I'll post the code directly to you. The specific code is as follows: output i 2 j 7 k 7 h 3 p1 0 p2 …… -
Java prints out the digits in reverse order according to the number of positive integers
Title: give a positive integer with no more than 5 digits. Requirements: first, find how many digits it is, and second…… -
Java finds all subsets of a set through bit operation
Java does not have its own method to find all subsets of a set. We can find them through the subset law of the set. Al…… -
Java to merge cells and export excel examples
introduce POI provides APIs for Java programs to read and write files in Microsoft Office format. The document formats…… -
Socket communication instance code between Python and Java
Socket communication between Python and Java I have done a Java communication tool before, with basic functions such a…… -
A summary of the mistakes that long and integer are easy to make in Java
Today, many high-risk vulnerabilities are found after scanning the project with findbugs. A very common one is to comp…… -
Detailed explanation of the conversion of byte, byte array, int and long in Java
1、 Source code of conversion between byte and int in Java: Test code: 2、 Source code of conversion between byte arra…… -
Detailed explanation of lambda expression example, a new feature of Java 8
Detailed explanation of lambda expression example, a new feature of Java 8 Before introducing lambda expressions, let'…… -
Java replace spaces
Please implement a function to replace spaces in a string with "% 20". For example, when the string is we are happy Th…… -
Detailed explanation of IP and URL and example code of network programming in java development
Java network programming java. net Class InetAddress this class represents an Internet Protocol (IP) address. An excep…… -
JSON lib converts a string in JSON format into an instance of a Java object
The date in the JSON format string is in the format of 'yyyy MM DD HH: mm: Ss'. If it is converted into an object acco…… -
Java implements the JSON back-end to transfer data to the front-end
1 back end two auxiliary classes ConcurrentDateUtil. Java, used to generate the format we need JsonResult. Java, jsonr…… -
Summary of object-oriented knowledge points in Java
1、 Concepts of objects and classes Class: an abstraction of a class of things with the same properties and methods. O…… -
Java and freemaker keep two decimal places
1、 Java retains 2 decimal places 2、 Freemaker keeps two decimal places Supplement: freemaker keeps decimals Freemake…… -
10 Java programmers familiar with object-oriented design principles
Object oriented design principle is the core of oops programming, but most Java programmers I have seen are enthusiast…… -
Java does not print instances of array elements with circular statements
Examples are as follows: The above example of printing array elements without circular statements in Java is all the c…… -
Java intercepts string instances between specific two tags
If there is a string: higklmnopq The Java code is as follows: The above example of Java intercepting the str…… -
Comparison and difference between overloading and rewriting in Java
The difference between overloading and rewriting in Java First, let's talk about overloading (1) Method overloading is……