Java

in real-world applications, it is often necessary to export data intoExcel, the exported method is exported in addition to thePagination export, pagingSheetExport and large data volume export. ForExcel 2003due to limitations on eachsheetthe maximum

first, what is a commentSpeaking of annotations, you have to mention what metadata is (metadata). The so-called meta-data is data data. In other words, metadata is descriptive data. Just like the fields in a data table, each field describes what the

1, GsonGson is an open-source Java class Library provided by Google that translates Java objects into corresponding JSON representations, and of course Gson can convert JSON strings to Java objects equivalent to them. Gson is valid for any Java

Poptest is the only training institute for developing Test and development engineers in China, aiming at the ability of the trainees to be competent in automated testing, performance testing and testing tools development. If you are interested in

First of all, this review is from the Internet, books, search and sorting out, there may be technical points on the wrong point, perhaps not so deep understanding. But I am the attitude of learning to comment, study, hope to everyone useful, into

Blog Category: Java synthesisOne: In Java, there are six different places where data can be stored:1. Register (Register). This is the fastest storage area because it is located in a different location from the other store-the inside of the

First, the concept of conversationA session can be simply understood as: A user opens a browser, clicks multiple hyperlinks, accesses multiple Web resources on the server, and then closes the browser, the entire process is called a session.Stateful

Let's take a look at the relationship between multithreaded programming and CPU clock oscillation in Java.The usual, first scienceOur operating system was a single mission before DOS.What is a single task? Only one thing at a time.When you copy a

I. Classification of communication methodsThere are three communication modes in the current network traffic: unicast, broadcast, and multicast (multicast), where multicasting occurs at the latest, with the advantages of unicast and broadcast.

The purpose of defining the specification is to unify the code style of the project so that the program is readable. All naming rules must adhere to the following rules:In Java we generally use the Hungarian notation, the basic structure of

Spring 1/2 (6), spring 1 2 3 4 5 6 7 IStuDAO. java 1 package com.lee.spring008.IOC.DI.MVC;2 3 public interface IStuDAO {4 public void saveStu();5 } IStuService. java 1 package com.lee.spring008.IOC.DI.MVC;2 3

Java reference type When the blogger recently sorted out the Java Collection framework and sorted out WeakHashMap, he felt it necessary to elaborate on the Java reference type first. Therefore, I would like to give you more comments on this

Android Development Environment configuration (taking windows as an example), androidAndroid Development Environment Configuration Tool If you are going to be engaged in Android development, you can configure the Android development environment by

Java syntax sugar foreach ?? Syntactic sugar is a syntax provided by almost every language to help programmers develop code. It is just a little trick implemented by the compiler, during compilation, developers can perform some processing on these

Eclipse plug-in writing (1), eclipse plug-in writing Because there are some repetitive code in the project development process and there is no business logic, it is very troublesome and error-prone to copy and paste, So I think of an eclipse plug-in

Chapter 6 JVM garbage collector (2) jvm garbage collection The previous chapter records several common garbage collectors. For details, see chapter 5 JVM garbage collector (1).   1. G1 Note: From the Perspective, compared with CMS, G1 is

According to the TYPE File Import and Export function, type File Import and Export /** * Import file Action;*/Private File excelFile;// Save the original file namePrivate String excelFileFileName;// Save the original file namePrivate String

Java RMI (Remote Method Invocation), rmiinvocation RMI knowledgeRMI is short for Remote Method Invocation-Remote Method call. Java RMI is implemented in JDK. Its power is reflected in its powerful ability to develop distributed network applications,

The Set calculator assists Java in processing conditional filtering of structured text, and java structuring Using Java to filter data in text files by conditions may cause the following troubles: 1. files are not databases and cannot be accessed

The Set calculator assists java in processing the set operation of structured text, and java structuring JAVA does not directly support set operations. Therefore, you must use nested loops to perform set operations such as intersection, union, and