Java
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Java – using registershutdownhook() in the spring framework
I follow this tutorial online But when I use eclipse, I get an error when I get to this line: context registerShutdown…… -
Java – with JSF 2.0 / facelets, is there a way to attach a global listener to all Ajax calls?
Is there a way to attach a global listener to all Ajax calls in JSF? Perhaps through a stage of the audience? This is …… -
Meaning of import statement in Java language
When we use the import statement in a java file, can anyone clearly explain to me what happened? If we add more and mo…… -
Java – hibernate 4: persistent inheritancetype Joined identifier column value
I have a simple joined document hierarchy: CREATE TABLE Documents ( id INTEGER NOT NULL,discriminator ENUM('official…… -
Java – no JTA UserTransaction is available – specify ‘UserTransaction’ or ‘usertransactionname’
The Spring Trading encountered a strange problem My application uses spring and EJB EJB also calls the spring service …… -
Get file name from input stream (Java)
If I have this code, how can I keep the file name of the original file or reassign it to the new file?: InputStream in…… -
Java – adjusts the selected file to filefilter in Jfilechooser
I write a graph editor in Java This application can choose to export to various standard image formats, such as jpg,. …… -
Double precision of “= =” operator in Java
This method returns' true ' Why? public static boolean f() { double val = Double.MAX_VALUE/10; double save = val…… -
Java – how do I find file sizes in scala?
I'm writing a Scala script and need to know the size of a file How to execute correctly? os.stat('somefile.txt').st_si…… -
Java – generate fractal rotation
I need to use the algorithm iterated function system to draw fractal vortices This fractal has coefficients: 0.745455 …… -
Java – connection pool for dynamic database connections
The problem setting is based on a web service (spring / Java, tomcat7 and MySQL). Each user obtains its own database, …… -
Multithreading – testeract 3.00 multithreading?
I read some other posts and suggested that they add multithreading support in 3.00 But I don't know if I add it after …… -
Can anyone simply describe the difference between the three closure proposals and their current state in Java?
I'm reading closures that will appear in Java 7 I'm a little confused because on the one hand, there are many good art…… -
Java – how to design a system to send records and retry sending if no confirmation is received?
I'm working on a project where I need to consume a lot of records, and then I send these records to other systems usin…… -
The best Java Jabber Client Library
What are your good / bad experiences with the Java Jabber library? Solution I have good experience in smack library I …… -
Java – your project location contains spaces (Android Studio)
I just moved from eclipse to Android studio for Android application development When creating a project, I received th…… -
Design Java programmatically library. path
I can set up Java programmatically from the Java code itself library. Path? Not below System.setProperty("java.library…… -
Java – create a class whose objects cannot be created
I was studying for my BS, and my professor gave me a task. He said: create a class without using any access modifiers …… -
Equality – equals() and deepequals() in Java 7
The method statement states: Which (for me) suggests that if they maintain references to each object, using the equals…… -
Java – multiple colors for each item in jcombobox
I tried to make one Combo@R_514_2419 @Use different colors for different items I wrote some test code, but it didn't s…… -
Java – NullPointerException when the viewpager is displayed for the second time
The viewpager clip I use has two clips for children This is great, but when I replace the viewpager fragment with anot…… -
Mongo Isodate query in Java
I have a Mongo query executed: query = { "dateField" : { "$gte" : ISODate('2011-11-10T07:45:32.962Z') } } When I exec…… -
How to process different versions of XSD files in a Java application?
fact In my java application, I have to process XML files of different schema versions (XSD files) at the same time The…… -
Java – Create directory recursively
Does anyone know how to use java to create subdirectories based on N-level depth letters (A-Z)? /a /a /a …… -
Java – how to add references in eclipse
I developed some software in access / VBA It handles lotus notes, so in the visual basic editor, I just went to the to…… -
Java – spring securely switches to LDAP authentication and database permissions
I implemented database authentication for my web pages and web services @Configuration @EnableWebSecurity @EnableGloba…… -
Java – hibernate SQL query result mapping / conversion to object / class / bean
1 2: Select (table. * *) / (all columns) ok String sql = "select t_student.* from t_student"; //String sql = "select t…… -
What experience have you had with functional Java projects?
I am reading the following questions – how safe would it be to use functional java to add closures to a Java productio…… -
How to use org. Org in Java apache. commons. Lang namespace?
I tried using org. Org in eclipse apache. commons. Lang. notimplementedexception, although you can see from IntelliSen…… -
Java – Android studio – gradle 1.5 – core library options
There is a problem with my android project and gradle 1.5 I know that searching from Android devices may not be the be…… -
Java – loop through the list, a better way
When I write and discover new ways of working in Java, I'm always confused about the better way to loop lists to outpu…… -
How to ensure that a code block cannot be interrupted by any other thread in Java
For example: new Thread(new Runnable() { public void run() { while(condition) { *code that must not be in……