Java
-
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…… -
Java – Android eclipse all spinner fonts turn white
In my project, all spinner fonts suddenly turn white, which is why I can't find it They were all black before For exam…… -
Java – keep the dead line alive
In an interview with me, I raised the following questions (a few years ago) I have argued that there is no way But he …… -
Java – how to verify a secure password Regular expression on char []?
This question is a follow-up to this question: Why is char[] preferred over String for passwords? This is a good quest…… -
Java – how to disable speed logging
I've been trying to disable the velocity log, and the only way I've found so far is to set the positive result: runtim…… -
Java – an efficient data structure to check whether a string exists
I'm writing a program that will add more and more numbers or unique strings to the data structure Once I'm done, I nee…… -
Java – how do I find the JPA version?
How do I understand the JPA version I use in EJBs? to greet Solution Using the Java EE 5 container, you will get JPA 1…… -
Java – how to change property values at run time in spring
I need to change properties in the application at run time My properties file has hours.expired=12 My service private …… -
. Net – does the StringBuilder initialized with a string contain the exact (only) space for the string?
I wonder if this code StringBuilder sb = new StringBuilder("Please read the following messages."); ... initialize sb w…… -
Java – use hibernate JPA to store objects in columns
Can I store things like the following that use only one table? Now, what hibernate will do is to create two tables, on…… -
Java – customize webargumentresolver, such as @ pathvariable
I want to use a custom webargumentresolver as the ID – > entity If I use the request parameter, it is simple enough…… -
How to provide preprocessing instructions in Java
There is already an answer to this question: > how to mark java code such that it's not compiled [C#] #define PRODU…… -
Java – why can I set – Xmx to a value greater than physical and virtual memory on windows and Solaris?
On a 64 bit windows machine (each task manager) with 12gb ram and 33gb virtual memory, I was able to run Java (1.6.0_0…… -
Java – find duplicate entries in the collection
Is there a tool or library that can find duplicate entries in the collection according to specific standards that can …… -
Threads in Java threads?
I am currently considering how to design a multithreaded system in Java that needs a lot of network processing and dat…… -
How to create blob objects in Java?
1. How to create blob objects in Java? I have created a blob object byte [] fileId=b.toByteArray(); Blob blob=new …… -
It’s a ‘. ” Member access is considered an operator in Java?
In Java, I can access public members of a class You can see in the second line of the main method of the following exa…… -
Java – IntelliJ and Maven source folder issues
I tried to create a simple java webapp using IntelliJ (v11.1.3) and integrate it with a simple Maven POM file to downl…… -
Java – the difference between opencv and OpenCL
Anyone can explain the difference between opencv and OpenCL? What is suitable for Android image processing in Java? So…… -
How to set tab order in swing Java?
I want to know how to adjust the Tab order in the Swing interface. I found an example that shows the trick this method…… -
Java – regular expressions extract text in reverse order up to the third character instance
I have a format of XXXX_ YYYY_ YYYYYYY_ String of yyyyyzzz How to extract a string from the back until it hits thrid_ …… -
Java – should I use mod or remainder when checking the separability of BigInteger?
When a BigInteger B checks the divisibility of BigInteger a, I can write a. mod (b) Equals (BigInteger. Zero) or A. ho……