Java
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Java – you can programmatically access the current heroku dyno ID / name?
On heroku, can you get some identifier of dyno currently executing code from the program through the program? For exam…… -
The Java – Scala ide – play 2 Eclipse Plug-in does not highlight the syntax of scala HTML templates
I installed the scala ide – play 2 plug-in (from http://download.scala-ide.org/play2/nightly_3.0-M_juno_2.10-M/site/ …… -
Java – how to set 40x errors using custom messages on jax-rs exceptions?
I am working on Web services on Jax - rs Now I'm looking for a way to catch some exceptions to send a custom message o…… -
Java lambda sublist
What is the shortest path to express "conditions for obtaining new list B from list a" through Java 8 lambda? Say I ha…… -
Java – use ‘debugunreturnedconnectionstacktraces’ to debug connection loss
I am trying to solve the connection timeout problem of my ongoing project We use c3p0 to manage connection pool and Hi…… -
Java library maintains database structure
My application is always developed, so occasionally - when the version is upgraded - some tables need to be created / …… -
Java – spring-aspects-4 dependency not found
I want to upgrade my project to spring 4, but for aspectweaver-1.8 0.M1. Jar, I lack dependencies When I looked at the…… -
Java thread dump: blocked thread does not have “wait lock…”
It is difficult for me to understand the thread dump obtained from jstack for spring MVC web applications running on T…… -
How do I create the following GUI in Java swing?
I want to create the following GUI with Java swing Since I don't have enough experience with Java swing, I'm not sure …… -
Maximize jinternalframe in Java
I try to maximize jinternalframe at startup I've searched the web and tried various code suggestions, but they don't s…… -
Java – convert dtmmanagerdefault to ClassCastException of dtmmanager during maven JAXB CodeGen
I encountered a strange problem when trying to run a maven build of JAXB CodeGen using the jaxb2 plug-in (see stacktra…… -
Java – Request: https://www.w3.com Org / 2000 / SVG discovery: http://www.w3.com org/2000/svg
See English answer > XML namespace URI with HTTPS? 1 Now, when we render SVG files, we encounter this problem >T…… -
java – Map. Add / addall operation not supported by keyset()
About the map < K, V > interface: Why does keyset () return a set that supports the remove operation but does no…… -
Java – htmlunit – convert htmlpage to HTML string?
I'm using htmlunit to generate HTML for various pages, but now, the best way I can put the page into the original HTML…… -
Javafx-8 – how do I set up the controller in the scene builder?
I want to use scene builder for JavaFX applications I have a software package called testpac, which contains my folder…… -
Reduce the PDF file size of the drawing by filtering hidden objects
When generating a scatter plot of many points in R (for example, using ggplot ()), many points may lag behind other po…… -
Java – sort an array of file names containing numeric strings
For my project, I need to download a zip file from the FTP server. I can publish a new zip about 13 times a year I nee…… -
Java – cobertura override and assert keywords
The line coverage of the unit test I measured on cobertura is being affected because I have asserted that it is not co…… -
Java – the difference between restful WebService and httpservlet
See the English answer > servlet vs restful 1 Solution Rest is really an architectural style when designing APIs on…… -
What is java actually?
I work in selenium. This problem is more specific to Java than selenium The example I provided is selenium webdriver e…… -
Simple java date calculation
I want to do simple date calculation in Java For example, calculate the difference in days between dates (with a 0 tim…… -
Java: pre, postfix operator takes precedence
I have two similar questions about operator precedence in Java First: int X = 10; System.out.println(X++ * ++X * X++);…… -
Java double. MAX_ VALUE？
Hello, I was in my first year of computing system development, so I am very new to Java and have mastered the basic kn…… -
Java – JDK 1.7 jarsigner with HTTPS TSA is no longer valid
Looks like JDK 1.7 0_ The Thawte root certificate in 80 was revoked Using 7u80 jarsigner is no longer valid and worked…… -
Java bean, BeanUtils and Boolean wrapper classes
I used bean utils to manipulate Java objects created through JAXB, and I encountered an interesting problem Sometimes,…… -
Decrypt encrypted assertions using SAML 2.0 in Java using opensaml
There was a problem trying to decrypt encrypted assertions using SAML 2.0 The library I use is opensaml Java library 2…… -
Java – analyze JSON map / dictionary with gson?
I need to parse the JSON response: {"key1": "value1","key2": "value2","key3": {"childKey1": "childValue1","childK…… -
Java method call expectations
This is a java program with two buttons to change the integer value and display it increase.addActionListener(incListe…… -
Java – play framework 2.4 does not accept “public static results” from controllers
I try to start the application using play framework 2.4 and JDK 8 in MAC when I use/ When the activator downloads the …… -
Java – multiple dependency versions in gradle
I'm building a java project that uses gradle for version control I'm starting from the old version of drools rule engi…… -
Java – how to calculate the number of instances of a specific class in ArrayList?
I have an array list that looks like: [new Class1(),new Class2(),new Class1(),new Class1()] I want to know the most ef…… -
String. Is format (. Net) equivalent in Java?
. Net Format (maybe just VB. Net) converts {0}, {1},... To a determined string, for example: Dim St As String = "Test:……