Java
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Java – a simple GUI toolkit for clojure
The length of this problem is which GUI toolkit creates a very simple UI and is easy to use clojure? Here are further …… -
Java – how to use JAXB to validate XML schema?
I am using XML and JAXB because I ungroup and group XML into Java objects and vice versa Now I try to validate our XML…… -
Java – Google cloud messaging – instant or long received messages
I'm using Google cloud messaging in my last year's college project Everything is going well, but I've been having trou…… -
Java – * and *? In spring @ scheduled (cron = “…”)
I've been looking at the spring boot example to schedule tasks（ https://spring.io/guides/gs/scheduling-tasks/ ）And r…… -
Java – all natural numbers, the sum is n, and the reverse sum is 1
I have a problem to solve N natural numbers are given I need to find a list of natural numbers, sum to a given number,…… -
Javafx-2 – JavaFX, how to freeze the position of some columns in a tableview
The idea is: on a tableview with n columns, the first m column can always be visible even with a horizontal scroll bar…… -
Parallel assignment in Java?
Does java have a python like [a, B, C] = (1,2,3) or PHP list ($a, $B, $C) = array (1,3)? Solution It's not true You ca…… -
Java – GWT superdevmode breakpoint does not work
I'm using IntelliJ. I try to put a breakpoint in a class. Sometimes it works, but sometimes it brings the debugger int…… -
Select statement in Java
public void search() throws Exception{ public void search() throws Exception{ Class.forName("sun.jdbc.odbc…… -
Java – immutable array thread safe
I have a question about the JAVA memory model This is a simple class introduction question: public class ImmutableIntA…… -
Java – advantages of log4j
The advantage of log4j is that the system Out and system Err set to output to log file? Solution At a high level, log4…… -
Java – why use J_ Username and spring_ SECURITY_ LAST_ Username variable?
Why do things turn out like this? <input type="text" name="j_username" value="${SPRING_Security_LAST_USERNAME}">…… -
Java series reel to disk
Because some very large lists and collections are built during a transaction, I ran out of memory in Java and repeated…… -
Java – how to add a JDBC MySQL driver to an eclipse project?
There is already an answer to this question: > how to install jdbc driver in eclipse web project without facing Jav…… -
Java – does pdfbox support spot color and color separation?
I am interested in using it in the project PDF@R_635_2419 @, the project needs to be able to specify spot color and co…… -
Java – collect Linux command output
I'm on a @ L_ 404_ 0 @ on the machine I have a java program that will run some linux commands, such as PS, top, list o…… -
Java – how do I get a custom space between JList projects?
I've added several images to my JList, and now I'm showing their level. Now I want to increase the space between the i…… -
java – System. Out character encoding
I run my java program from the command line (Windows 7) To simplify matters, I will only describe the relevant parts p…… -
Java – is the constructor not a member of a class?
Constructor is not a member of class? If so, why not inherit? JLS 7.0 says that constructors are not members, so they …… -
Ultra lightweight Java persistence layer needs
I need a super lightweight persistence layer for the Java application I'm writing I need it to become a stand-alone ap…… -
Java – how does method parsing and invocation work inside Python?
How do method calls work in Python? Indeed, python method parsing in Python may be slower than Java What is late bindi…… -
Calling Java functions from clojure
I can use (. Touppercase "good") because "good" is a Java string that has a touppercase method I can also use (Java. I…… -
How to store Java types and allow only some specific types?
Suppose I want to have a class descriptor for records, where each record has a set of properties Each attribute has a …… -
Undiluted date, with additional numbers in Java
What's wrong with this code? I try to parse the date format between months and months import java.text.SimpleDateForma…… -
Severe: Java class not found util. Message body writer for ArrayList and mime media types application / JSON
I'm testing the restful service. When I execute, I get an exception. Although there are the following jars in my class…… -
Java – generics and CompareTo () methods
I'm trying to create a skiplist. I have a method using common data types: public void add(E key,Integer value) { N…… -
Java – why does jmh run different forks?
I use the jmh benchmark framework（ http://openjdk.java.net/projects/code-tools/jmh/ ）Run the benchmark on my code My…… -
Java – how to use POI to set the author name as an excel file
I am using poi (Java) to create an excel (. Xlsx) file After I created the excel file, I saw the excel file as "Apache…… -
Java executorservice pauses / resumes a specific thread
Is there any way to use executorservice to pause / resume a specific thread? private static ExecutorService threadpool…… -
Java – why are we in JSP instead of system out. Write out in println() println()？
I started learning JSP. I saw that if we want to print something in JSP, we must write out Println () instead of syste…… -
Java – recursive BeanUtils describe()
Is there a version of BeanUtils Describe (customer) recursively calls the describe () method to the complex attribute …… -
Java – how to get the line number of a method?
Can I get the line number of using reflection or other magic methods? Solution I want to do the same thing. After some……