包含标签：Java 的文章
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How to use Java 6 to build a java project for the Java 1.4 library?
I have a project originally written for Java 1.4, but I only have Java 6 on my Mac, and I can't install Java 1.4 Usual…… -
What is the object field initialization and constructor order in Java
I ended the following scenario in the code earlier today (I admit it's a little strange, I've refactored it) When I ru…… -
Java – shutdown hook and finalizer methods
I just don't understand why I have to use runtime addShutdownHook. If you want to do some cleanup when the JVM exits, …… -
Java – spring boot – environment @ Autowired throws NullPointerException
I have one that uses spring boot 0.5 0.m5 project settings In one of my profiles, I tried to @ autowire environment, b…… -
Java – send and receive serialized objects over UDP
I tried to send a serialized object from the server process to the client process in Java using UDP The problem is tha…… -
Java – guava: why method create () instead of constructor?
Excuse me, can you explain why guava creators like to define constructors as private and define static methods create …… -
Java – ant buildfile cannot put the jar file into the classpath when running other jar files
I'm new to ant build files. I've managed to build my build files to create my build directory structure, compile all m…… -
Open source JavaFX 2.0 component library [closed]
Do JavaFX 2.0 have any good component libraries / repositories? In particular, I am looking for open source projects t…… -
Java – how to create a copy of the same object using different references?
Friends, I'm facing a problem. I have a phonecontacts list, which contains names and phone numbers I want to copy it i…… -
Java – how to open a Lucene 4.3 index?
I'm new to Lucene. I'm trying to open a Lucene 4.3 index using Luke (I created it with my simple Lucene 4.3.1 applicat…… -
Java annotation processing: how do I know that a round is the last?
When abstractprocessor is extended, it is possible to override init (...), but there is no "opposite" method, which wi…… -
List and list in Java
ArrayList of list < InterfaceI > and list both have class objects that implement InterfaceI When should I use i…… -
Java – Jackson: multiple back reference attributes named ‘defaultreference’
I tried to map a JSON (string format) to an object, and I got the following error This is a JSON string {"pledge":"74"…… -
Java – how to run common code for most requests in spring MVC web app?
Namely I mapped various URLs using spring MVC requestmapping @RequestMapping(value = "/mystuff",method = RequestMethod…… -
Java – how do I format an integer as a string of four zeros?
I try to do something similar in Java (eclipse indigo): input - 16 (integer); Output - "0016" ; input - 201 (integer)…… -
How to convert a dataframe to a dataset in Apache spark in Java?
I can easily convert a dataframe to a Scala dataset: case class Person(name:String,age:Long) val df = ctx.read.json("/…… -
java – Eclipse 3.5. 1 compiler error: due to error on required Library/ The outputformat type cannot be accessed due to the restriction of rt.jar
The mistake is so strange that I can't understand it I have installed eclipse RCP 3.5 1, import com.sun.org.apache.xml…… -
Java – how to get form data in play framework
Before asking this question, I found this neat post (but it can't solve my problem): I'm trying to use the play framew…… -
Function style of Java 8 link
I have a map < < string, string >, which represents the link from a to B I want to link all possible routes F…… -
Java – how do I name repositories and service interfaces?
How do I name the repository and service interfaces and their implementation classes? For example, I have a model call…… -
Java – set up multi-directional – Android
I am a novice in Android programming. I have a problem with direction I hope my activities can only be viewed in portr…… -
Continuous integration – how do I test JavaFX 2 in a headless environment?
I tried to automatically test JavaFX 2 applications running on Java 7u6 through integrated JavaFX 2.2 As a next step, …… -
Java – how to centrally print statement text?
So I'm developing my java project, and as part of the program, I'm printing text Example: public static void main(Stri…… -
How to work in Net application to identify possible memory optimizations?
We have one Net application, our customers think it is too large-scale deployment. We want to know what will help our …… -
Processing objects according to the implementation of interfaces in Java
I have been looking for design ideas to solve this problem in Java I'm using a library (I can't change it). For this e…… -
Java – unable to initialize class com sun. xml. internal. ws. fault. SOAPFaultBuilder
I use JAXB - impl - 2.1. In the Maven library 3.jar .. Everything looks good in the POM entry If someone encounters th…… -
Java – does not override generic methods in superclasses – > which one to use?
In view of this situation: public class Animal { public <T> void genericMethod(T t){ System.out.pri…… -
Java – BufferedReader does not read all lines in the file
I tried to read / proc / net / XT in Android 6_ qtaguid / stats. 2 a0 0 0 123456 311 48329 737 48 1 3 b0 0 0 0 0 0 0 0…… -
Java – a fast algorithm for inverting ARGB color values to ABGR?
I am using intbuffer to operate the pixels of bitmap, but the value in the buffer should be aabbggrr and the color con…… -
Java – the difference between the final variable and the static final variable
I'm just studying the final data members. What's the difference between the final variable and the static final variab…… -
Java – why mine Jar files run slower than programs in eclipse?
I have a java program that reads a large amount of input data from the database, operates on it, and then writes the d…… -
Java mimetypes filetypemap always returns the application / octet stream on the Android simulator
I'm trying to determine the mime / media type stored on the Android device (actually a virtual device used with the em……