包含标签：Java 的文章
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Java – how to calculate next week?
I want to accurately calculate the time of a week on a given date, but the output I get is an hour earlier Code: long …… -
How to implement unit converter in Java
How can I implement a unit converter in Java??? I'm thinking about an abstract base class: public abstract class Unit …… -
Java – is generic programming an example of polymorphism?
I'm doing a homework (a project) and one of the criteria is that I must take advantage of polymorphism in a way that s…… -
Minimal java8 NiO secure websocket client (WSS)
It took me a long time to find a simple java websocket client that can use WSS without mess I tried https://github.com…… -
Even if you implement Java in a simple POJO Java class io. Is serializable also a best practice?
In general, let a simple POJO Java class implement Java io. Is serializable a best practice? Solution Not usually Josh…… -
Java – classes that implement interfaces without type parameters cannot be compiled
I have the following test codes: public interface Container<I> { public void addClass(Class<?> clazz);…… -
If Java does not have a preprocessor, what is “import”
This article is in 2.2 1 says that there are no more typedef, definitions or preprocessor In C, include is part of the…… -
Java – extract data from PDF417, such as driver licenses
I have an android app and I'm scanning PDF417 barcode images After scanning the bar code, I got the following results …… -
Multithreading – how do I implement atoms in clojurescript?
In clojure to address concurrency, we can use an atom to write: user=> (def my-atom (atom 0)) #'user/my-atom user=…… -
Use Java – getcontentresolver () and GetWindow () in dialogfragment
I'm trying to insert seekbar in the dialog box to change the brightness To this end, I wrote this code public class Lu…… -
Why user Do dir system properties work in Java?
Almost every article I've read tells me that you can't create chdir in Java Accepting the answer to this question mean…… -
Compare hashmaps in Java
I have two hashmaps: foo & bar HashMap foo is a superset of HashMap bar How to find out the missing "key" in HashM…… -
Why import javax Error in servlet. *?
I'm using java se 6 and eclipse with an error in the line import javax.servlet.* This import does not appear to have a…… -
Java – enum and class loader
Sometimes you may not even know that the environment in which you insert code has multiple class loaders In this case,…… -
Java 8 function constructor from templated object
I am using eclipse Luna service release 2 (4.4.2), Java 8 U51 I'm trying to create a method that will create an instan…… -
Java – place nested classes in a separate file
I have a nested class file, but it becomes long enough to be unreadable Is there any way to decompose nested classes i…… -
Java – eclipse Mars does not display the JBoss server
This is what I've tried >In eclipse Mars, go to help - > install new software > click the Add button and past…… -
Java: unchecked convert from X to Y / how to implement castornull
I have implemented this function: static <X,Y> Y castOrNull(X obj) { try { return (Y)obj; } catch(Class…… -
Package Java nio. File does not exist
I'm studying how to compile Java. Java from the command line This is what I got: This is what I got: /myjava/compile.c…… -
Java – HTTP 415 on file upload using Jersey
My restful file upload code: @Path("/upload") @POST @Consumes("multipart/form-data") public String post( @FormD…… -
Java – how do I deploy my war on Tomcat for so long?
I have a web application that usually takes a lot of time to deploy on Tomcat I suspect that a database connection is …… -
When Java TimerTask is scheduled in the timer, has it been executed?
I want to clarify about TimerTask When you have the following code: timer.schedule(task,60000); The task is scheduled …… -
Java 3D array assignment
I have an array that looks like this static String[][][] School= new String[1000][20][5]; >In the first bracket, I …… -
Java – advantages of using a dynamic client with jax-ws
What are the advantages of using dynamic clients with jax-ws services over using only generated client classes? What a…… -
Java – jaxp API that is not valid when unmarshalling JAXB
I have a JAXB object that I can ungroup very well However, if I add an element [] field annotated with @ xmlanyelement…… -
Java – sets the timeout for user input
Can I set a timer for user input? Wait 10 seconds – proceed to the next step, etc //wait several seconds{ String s = …… -
Rest – jaxrs API vs. jsr311 API vs. javax ws. rs-api vs. jersey-core
For each of the above, I'm a little confused and still confused This is my understanding of this: >Jaxrs API: conta…… -
Java – how to create a modal jdialog over another modal jdialog
I have a mode setting dialog that is a jdialog In this setup window, I put some components (including a button) into a…… -
java – TimeZone. Gettimezone (“CST”) returns GMT
I'm converting time from CST to local time, but gettimezone doesn't seem to work properly String cstTime = "2013-06-21…… -
Java – httpservletrequest#getheader (“user agent”) returns null browser name
I'm using java 6 I know very little about JSP and servlet I'm using the following code to get the name of the browser …… -
How to focus items in a Java combo box
Is there a way to center the items in the combo box in Java? I tried this, but it didn't work: myCombo@R_793_2419@.set…… -
Java simpledateformat interprets the parsed string as UTC
My time zone is GMT 1 Therefore, the "date" object and "22.09.1985 00:00 UTC" print "Sun SEP 22 01:00:00 CEST 1985" on……