Recent Posts
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Java – how to disable info logging in HBase client applications?
I'm writing a Java console application to access HBase, and I can't figure out how to get rid of all annoying info mes…… -
Java – learn about mappedby annotation in Hibernate
I try to understand the mappedby attribute of @ onetomany annotation in JPA I created the following example where the …… -
Java – Flink streaming: how to output a data stream to different outputs according to data?
In Apache Flink, I have a string of tuples Let's assume a very simple tuple1 < string > Tuples can have any valu…… -
To interleave or interlace two vectors
I want to interleave two vectors of the same pattern and equal length Say: a <- rpois(lambda=3,n=5e5) b <- rpois…… -
Java – why are nested blocking annotations generally not allowed?
In most languages I use, you can't nest annotations at all, because "closing" comments. The first occurrence of sintax…… -
Java – references the spring properties file using a path relative to the configuration file
I am moving properties from my spring configuration file to a separate properties file This is included in the configu…… -
Java – references the spring properties file using a path relative to the configuration file
I am moving properties from my spring configuration file to a separate properties file This is included in the configu…… -
Java – how to effectively use the leaderelection recipe for curators using zookeeper?
I am using the Apache cursor library to conduct leadership elections on zookeeper My application code is deployed in v…… -
Why does Java allow method void with class name and type
There is already an answer to this question: > methods with same name as constructor – why? 7 Example code: //my cl…… -
Introduction to observer pattern of Java design pattern
When Java goes deep into a certain extent, it will inevitably encounter the concept of design pattern. Understanding d…… -
Analysis of Java object transformation
This article describes the concept of Java object transformation with examples, which can be shared for your reference…… -
Summary of sorting methods of sets and arrays in Java
According to the agreement, when using java programming, you should use the existing class library as much as possible…… -
Java functional programming (8): string and method reference
Chapter 3 string, comparator and filter Some methods introduced by JDK are very helpful for writing functional code. W…… -
Analyze the differences between abstract classes and interfaces in Java in detail
In the Java language, abstract class and interface are two mechanisms that support abstract class definition. It is pr…… -
Decorator Pattern details and code examples of Java design patterns
Decorator mode can dynamically add capabilities to existing objects. Next, I will use a simple example to demonstrate …… -
Use instances of table (JTable) and tree (JTree) components in Java Swing
1： Table (JTable): 1. Basic concepts: Table (JTable) is a new component of swing, which is mainly used to display dat…… -
Java uses circular linked list structure to solve Joseph problem
This paper describes the method of solving Joseph problem with circular linked list structure in Java. Share with you …… -
Example of using JDBC to access SQL Server 2008 database in JSP
Direct access to the database by jdbc driver advantages: 100% Java, fast and cross platform disadvantages: you need to…… -
An example of stack data structure using array in Java
Stack is one of the most important data structures in Java language. Its implementation should at least include the fo…… -
Method of Java operating MySQL
This article describes the method of Java operating mysql. Share with you for your reference. The specific analysis is…… -
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Introduction to the chain of responsibility pattern of Java design pattern
Chain of responsibility definition: chain of responsibility (COR) attempts to process a request with a series of class…… -
Introduction to visitor pattern of Java design pattern
Visitor definition: the operation that acts on each object in an object group. It allows you to define new operations …… -
Introduction to builder pattern (builder pattern) of Java design pattern
Builder pattern definition: separate the construction of a complex object from its representation, so that the same co…… -
Introduction to proxy mode of Java design pattern
Understanding and using design patterns can cultivate our good habit of object-oriented programming. At the same time,…… -
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Implementation interface of java basic tutorial
In the encapsulation and interface, the private keyword encapsulates the internal members of the object. After encapsu…… -
Java string similarity algorithm
This paper describes the Java string similarity algorithm. Share with you for your reference. The specific implementat…… -
Basic Java Tutorial: Hello world to object oriented
Java is a completely object-oriented language. Java realizes the concept of "cross platform" through the running mecha…… -
Method of cleaning DNS cache with Java
This article describes the method of cleaning DNS cache with Java. Share with you for your reference. The specific ana…… -
Spring MVC framework construction and configuration method and detailed explanation
Now the mainstream web MVC framework is spring MVC in addition to struts. Therefore, this is also the mainstream frame……