Java
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Performance optimization summary of 35 java development codes
Foreword Code optimization is a very important topic. Some people may think it's useless. What can be changed in some …… -
String. In Java Summary of split() usage
In Java Lang package contains string The split () method returns an array I use some in the application to summarize f…… -
Eclipse tips
I'm used to developing Java programs in eclipse. The company's recent projects are all developed by idea. Meanwhile, A…… -
Explain in detail the usage of inheriting classes using externds keyword in Java
Understanding inheritance is the key to understanding object-oriented programming. In Java, an existing class is inher…… -
Java implements a simple chat room program based on UDP protocol
I've been relatively idle recently. I've been taking the time to review some technical applications in Java. Nothing t…… -
Overloading and rewriting instance code of Java functions
In Java, polymorphism can be divided into two types: compile time polymorphism (overloading) and run-time polymorphism…… -
10 ways to get JAVA done in a few weeks
Don't confuse java with JavaScript. The goal of Java is & ldquo; Compile once and debug everywhere & rdquo; (E…… -
ASP. NET MVC4+EF5+EasyUI+Unity2. Front end page framework construction and source code sharing of background management system injected by X
At the beginning, we have a series of solutions. Let's start to build a new system. The user experience needs more and…… -
Wechat randomly generated red envelope amount algorithm java version
The craziest thing to play in recent years should be sending red envelopes, especially during the new year. The follow…… -
Java program implements the method of exporting excel (supports ie low version)
Today, I want to sort out an export problem I encountered some time ago. Because of the requirements of the project, s…… -
Java 8 method of reading files
JDK7 introduces a new file operation class java nio. file. File, which contains many useful methods to manipulate file…… -
Architects take you to a deeper understanding of Java interfaces and abstract classes
Abstract is one of the characteristics of object-oriented programming. In Java, OOP abstraction can be embodied in two…… -
Explain JavaScript from the perspective of Java developers
We can't explain all the details of JavaScript in a blog post. If you are more or less involved in web application dev…… -
JavaWeb export excel file and pop up the download box
1、 Introduction Reports are often involved in Java Web development. In recent projects, it is necessary to display th…… -
How much memory does a Java object occupy?
Recently, I read in-depth understanding of Java virtual machine and had a further understanding of the memory layout o…… -
8 common sorting of Java
6. Quick sort 8 sorting that programmers must know (Java implementation) Relationships among 8 sorts: 1. Direct insert…… -
Java JDBC connects to MySQL database to realize the operation of addition, deletion, modification and query
JDBC is no stranger to us. As long as you are engaged in Java, you have to learn such a thing when you first contact J…… -
Summary of Java idioms
In Java programming, some knowledge can not be learned only through language specifications or standard API documents.…… -
Common java development exceptions and explanations
Explanation of common Java exceptions: (translator's note: non-technical analysis. Reading is risky, understanding sho…… -
Java web development environment MyEclipse 6 5 JDK1. 6 Tomcat6. 0 SVN1. 8 configuration tutorial
The configuration of Java Web development environment is also a cumbersome thing. Although in theory, using Notepad ca…… -
Java implements code sharing to find the maximum palindrome string of the current string
Look at the code first 1、 Palindrome judgment of string Judge whether a string is palindrome Problem Description: giv…… -
Suggestions for developing and maintaining Java for large projects
Suppose you are developing and maintaining a java developer with 2000 classes and many frameworks. How do you understa…… -
10 classic javamain method interview questions
The following is what I think is a classic interview question about Java main method. It is not so much a Java intervi…… -
Summary of experience in dealing with character coding in Java
When facing a string of byte streams, its actual meaning cannot be known if its encoding is not specified. This senten…… -
40 common java development interview questions and answers
Java collection framework is the basis of Java programming language and an important knowledge point in Java interview…… -
Java – find an integer n > 0 that contains the following three conditions
Some definitions of starter: flip (n) is the 180 degree rotation of seven segment display font numbers, so a 7 / 2 fon…… -
Java – method level spring configuration file?
I want to introduce some methods that are only implemented in the development process I thought I could use the spring…… -
Java – how to create an independent executable jar using Maven?
I want to package it in a separate executable jar for distribution I need an executable like main Jar and all dependen…… -
Java – annotation based validation framework
I am looking for an annotation - based validation framework that will allow me to validate parameter values Similar to…… -
Java – what is the best way to update entities in JPA?
I am using JPA for some CRUD operations Do you want to update a correct method? By updating the query or by finding th…… -
Multithreading – is there a greendao thread safety best practice?
I've gone with greendao and it's all good so far One thing that doesn't seem to be covered in documents or websites (o…… -
java – View. Onclicklistener() function or interface
View. Is onclicklistener() a function or an interface? When we try to set up an onclicklistener () method in Android, ……