Java
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JPA: what is the behavior of merging with lazy initialization sets?
The following is the sequence that caused the problem: >I have a team record and 3 player records in the database T…… -
Java – sort double values in JTable
I found many problems related to this, but I didn't find a simple way to solve my problem I can't find a way to make m…… -
Threshold image using OpenCV (Java)
I'm working on a project with OpenCV I need to convert the following image to a threshold image I tried this function:…… -
Java – how to comment that all lines contain some text in eclipse
I'm using eclipse to cook Java Now, when I want to comment on all lines containing specific text / variables, I have e…… -
Java XML schema validation: prefix unbound
I have followed this tutorial to validate XML files However, an exception was received while validating the XML file W…… -
Register a Microsoft authentication service certificate for a user from a java program
With microsft certificate services, users can register / create their own certificates How do I create this certificat…… -
Java – Find Unused public members in eclipse
I have a class with 1600 public static members I have to find and delete unused Is there any way to do it in eclipse S…… -
Java – spring MVC passes a list of values from the JSP page to the controller
If I have HTML in < form >, like this: <input type="text" value="someValue1" name="myValues"/> <inp…… -
Java – friends list of friends who use twitter4j
How can I use twitter4j to get a friend list of friends or fans? Using getfriendsid (), I can only retrieve the list o…… -
Java – serialize POJOs using gson
I use gson to serialize POJOs – objects before and after changes The changed (called a) set by struts 2 can be easily …… -
How do I turn the monitor on and off in a Java application?
How do I turn the monitor on and off in a Java application? If you want to know why, this is a self-service terminal s…… -
Java – how to bind two parameters using play 2.0 routing
I'm learning play 2.0 (using the Java API) and want to have a double / float parameter (location coordinates), like ht…… -
Using multiple SSL client certificates with the same host in Java
In my java application, I need to use SSL to connect to the same host, but I use a different certificate every time Th…… -
Java – how to parse / decompress / decompress Maven repository indexes generated by nexus
I've been from http://mirrors.ibiblio.org/pub/mirrors/maven2/dot-index/nexus-maven-repository-index.gz Downloaded the …… -
java-8 – java. time. format. Datetimeparseexception: cannot parse text at index 3
I use Java 8 to parse the date and find the difference between the two dates This is my clip: String date1 ="01-JAN-20…… -
Java – copy excel tables using Apache poi
How do I use Java Se and Apache POI to copy an entire excel table into another excel table in the same workbook? Solut…… -
Java – why do I get a non convertible type error?
If I use this class: public class BooleanTest { public static void main(String args[]) { final Object[] ob…… -
Java static members in subclasses accessed through generic parent classes
This seems like a new problem, but the last time I use Java, the language has no generics I have a class hierarchy (ch…… -
Java – how to draw images to JPanel or JFrame?
I have read the Oracle tutorial on how to draw images to JPanel or JFrame, but I can't seem to do it correctly I need …… -
Java – is there any reason why some methods in file use Boolean values to indicate its success (not just throwing exceptions)?
The file class in java contains methods that use Boolean values to indicate the success of the operation being perform…… -
Java – JSON and Moshi formatting
Does anyone know how to make Moshi generate multiline JSON with indentation (for human use in the context of config. J…… -
Multithreading – why is Google Chrome renderer multiprocessing rather than multithreading?
Every time I load browser tags in chrome on my Mac, the application forks out to another process This seems to work di…… -
Java – problem downloading file using content disposition
I want my program to have a pop-up window to save as a window option before the file starts downloading, but when I ru…… -
Java – an elegant way to use flatmap in flatingby
So I have a piece of code. I'm iterating over a data list Each is a reportdata, which contains a case with long caseid…… -
Cost per class in a Java application – fewer large classes or several smaller classes
What is the memory cost for each new class added to a Java application? >Is it better to have 5000 large lines or s…… -
Java – how to configure my log4j (using GlassFish) login log directory instead of configuration?
My log4j The properties file has the following line: log4j. appender. logfile. File = MyApplication. log My log file a…… -
Java – cannot mask jar with Maven (invokespecial / static)
Complete error message: The jar file I tried to shadow is located in my own remote repository, using sonatype nexus Th…… -
Java – how to make NetBeans start faster NetBeans took a lot of time to open
I don't know if it's just my computer, but NetBeans is spending a lot of time turning it on I wonder what I can do to …… -
Java – parent POM Invalid wrapper for XML, must be ‘POM’, but ‘ear’
Someone can suggest a solution, with the following exceptions I'm going to create a multi - module project The parent …… -
Why does my java RSA encryption give me an arithmetic exception?
Yes Net, I generated the following public key file: <RSAKeyValue> <Modulus>xTSiS4+I/x9awUXcF66Ffw7tracs…… -
Java – gridbaglayout: how to prevent invisible components from crashing
When making the components of the layout managed by gridbaglayout invisible, the arrangement of other components in th…… -
Does java have a static sequential initialization failure?
A recent problem here is to have the following code (and similar) to implement a singleton without synchronization pub……