Java
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Example explanation of Java access to Chuang LAN 253 SMS verification code
Description the project is a springboot framework 1. The SMS configuration file contains authentication code sending p…… -
Using java to realize Yang Hui triangle example code
Before, a younger student asked me a Java interview question, which was not difficult. Using java to realize Yang Hui …… -
Java implementation of simple file filter function
Code idea: If you want to loop through all subfolders under a folder, you need to use recursion. First, determine whet…… -
Java implementation of Floyd algorithm
Floyd algorithm: it is used to solve the shortest path from multiple sources. It calculates the shortest distance from…… -
Explain several methods of installing eclipse Maven plug-in in detail
Yesterday, Maven environment was directly configured on the machine. Today, IDE environments such as eclipse are confi…… -
Java IO data operation stream, object serialization, compressed stream code parsing
Data operation flow In the IO package, two platform independent data operation flows are provided: Data input stream D…… -
Simple design of Java contact management system
This example shares the graduation design of Java contact management system for your reference. The specific contents …… -
Analysis of HashMap usage from the perspective of Java source code
―HashMap― Advantages: super fast query speed and time complexity can reach o (1). The data structure is HashMap. Dynam…… -
Simple implementation of Java upload image file function
Generally speaking, there are two ways to upload pictures. One is to write picture files to the database, and the othe…… -
Photo album management system (Java form + XML database storage)
Upload, download and management technology of functional files: 1 Using XML as a database to store information (Dom4j,…… -
Pinyin word segmentation using Pinyin 4J
Use Maven to import related jars Create pinyin4jutil The above method of Pinyin word segmentation using pinyin4j is al…… -
Java object stream instance code
The date object and vector object are written to a file, then read from the file and output to the screen Object input…… -
Java uses es query example code
As we all know, elastic search is short for ES, which is a Lucene based search server. It provides a distributed multi…… -
Explain the construction of restful API of spring boot in detail
The previous article explained how to access the database through the integration of spring boot with jdbctemplate, JP…… -
Spring boot actual database operation example code
In the previous article, I explained the basic principle and use of spring boot through a simple HelloWorld program. T…… -
C language student achievement management system
Design a student achievement management system to realize the dynamic management of student achievement, and realize t…… -
Method for realizing reverse order output of words in English sentences by Java
This paper gives an example of how Java can output words in reverse order in English sentences. Share with you for you…… -
Java thread dump analysis tool jstack parsing and usage scenario
Jstack is used to print out the Java stack information of a given java process ID or core file or remote debugging ser…… -
Example of encapsulated class code in Java language
In the object-oriented programming method, encapsulation refers to a method of packaging and hiding the implementation…… -
IO stream parsing and code examples in Java
IO stream There are two types of IO streams in Java: byte stream and character stream. As the name suggests, byte stre…… -
Analysis of differences between HashSet and TreeSet
I problem 1. How HashSet and TreeSet use hashcode() and equal() methods 2. When and why should the objects in treemap …… -
Java uploads excel content to MySQL instance code
MySQL table column name num1, num2, Num3, num4, num5, num6 table name Excel Upload method Testentity is the entity cla…… -
String. In Java Function example and source code of trim() function
Function of trim(): remove the spaces at the beginning and end of the string. Execution results: a: hello world,false …… -
Java introspection instance parsing
The number of contours in the image. The size of the vector represents the number of points on the contour. Understand…… -
Specific methods of using java to operate elasticsearch
System environment: CentOS 7.2 under vm12 Current installed version: elasticsearch-2.4 0.tar. gz Java operation es clu…… -
The establishment of binary tree and various traversal example codes in Java
This is a common interview question. For example, through the preorder and middle order traversal of binary tree, we c…… -
Method of realizing online number monitoring function based on java servlet listener
This paper describes the method of realizing the function of online number monitoring based on java servlet listener. …… -
Complete example of 2048 game implemented in Java
This paper describes the 2048 game implemented in Java. Share with you for your reference, as follows: Let's see the o…… -
Examples of matrix addition, subtraction, multiplication, division and transformation in Java
This paper describes the implementation of matrix addition, subtraction, multiplication, division and transformation i…… -
Configuration method of spring boot integrated Shiro
Spring boot provides a built-in authentication framework and a custom javaconfig configuration extension. Spring secur…… -
Java code implementation of wechat hop by hop
The circle of friends has made a jump for a long time. Today, I accidentally saw a video of a former colleague chick d…… -
Introduction to the differences between Java sets and arrays and examples of mutual conversion
Differences between arrays and Collections: (1) Arrays are fixed in size, and the same array can only store data of th……