包含标签：Java 的文章
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What happens if you use deprecated methods / functions in Java?
Any problems with using deprecated features in Java? If so, why keep this function? Is it a bad habit to use disapprov…… -
Java – numberofviewsinsession and multiple tags
I have a big problem with my application and memory The application (Java with JSF / RichFaces / facelet) is used by a…… -
Does Java – mockito have the same idiom as jmock’s country?
The book "object oriented software" provides several examples in jmock, in which the state is explicit and will not be…… -
Java – why do I need to provide closed class objects instead of closed class objects
class OuterA { class OuterA { class InnerA { } } class SubclassC extends OuterA.InnerA { SubclassC(OuterA…… -
How to use $. Of jQuery in async / await and typescript Post() method
My await statement in the asynchronous function is $. For jQuery Call of post() method, which returns a valid promise,…… -
“Java.net.socketexception: socket closed” when reading S3 file
I'm trying to read the CSV text file from S3 and send each line to the distributed queue for processing When trying to…… -
How do I manage the back buttons for multiple screens in libgdx?
What if there are some ways to manage the back button in libgdx? For example, in andengine, I implemented the followin…… -
Why does JDK also have math Random () and random classes?
Is it just because of the "large API syndrome" or random numbers that are more biased in some cases? If it is... I thi…… -
Java – draw a curved path on canvas?
How to draw a conic or triangular curve (such as sin (x)) on canvas? Solution Most drawing APIs do not provide such fu…… -
Javafx-2 – use JavaFX to check the collision of shapes
I tried to do some collision detection For this test, I use simple rectangular shapes and check their bound to determi…… -
Java – since migrating to spring boot 1.1 4. After release, @ value and application Properties problem
I have a problem because I moved to version 1.1 4. Spring launch of release Variables annotated with @ value have not …… -
Is there an underlying function in the Java – mongodb aggregation framework?
I tried to do some integer math in mongodb and encountered some problems Is there any way to round up or down doubles …… -
Java – wicket @ springbean cannot create bean
I have an eclipse, wicket, spring, hibernate project Everything is normal except when I try public class SortableConta…… -
Java – the order of automatically wrapped @ repeatable annotations
Before that, I used to manually declare the wrapper annotation using an array, and then call it like this: @Foos({ @Fo…… -
Java – get the current SVN revision in webapp
What is the best way to display / use revisions in Java webapp? We just use ant to build our War files, no buildserver…… -
Java – Import classes in JSP files
I wrote some code as a java servlet, and now I'm trying to convert it to JSP I wrote a class in a separate file and I'…… -
Java – how do I use a JUnit parameterized runner with a varargs constructor?
I wrote a model example to illustrate this without divulging any confidential information This is a "virtual" example …… -
Java – dimension, changing width / height only
How do I change the width or height of only the components that need a dimension object? Now I do this: jbutton.setPre…… -
Java – is logback mature enough to replace log4j?
I have read similar questions, such as this and this But they're about four years old! In addition, I also read the lo…… -
Servlets – infinite loop when forwarding requests in Java servlets
I hope you can help me solve the problem I face: I created a simple web application using NetBeans Up to now, this is …… -
How to find the date of an object in Java
Suppose I have a class named "test" and I create an instance of this class. Can I know the creation date of this insta…… -
How to replace the missing project . settings . Import the Java project of the classpath file into eclipse
I got a java source code from the opensource project The source code does not have eclipse project specific files, suc…… -
java – org. apache. batik. dom. svg. Where’s svgdomimplementation?
In documentation for batik, it shows how to get the apache. batik. dom. svg. Svgdomimplementation gets an instance of …… -
Database application of Java, JDBC and JPA
I would like to introduce that I am looking for a novice for advice because I am trying to establish good habits The a…… -
Java exception wrapping: bad practice?
From the PHP world, there is only one way to write exception handling I find the exception wrapper in java a little "u…… -
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 …… -
Reading JSON two-dimensional array in Java
Each news item has three contents: title, content and date To retrieve entries from the database, I want to use jsonob…… -
Java library for creating straight skeletons?
I have a 2D polygon with holes as input. I need to find its straight skeleton, as shown in the figure: http://www.cgal…… -
Is there any unordered and repeatable collection class in Java?
See English answers > does Java has multiset data structure like the one in C + + STL? 6 It seems that pool is a su…… -
Java – get the location of the swing component
I put some jpanels into another JPanel, and its layout is @ R_ 987_ 2419 @ layout and y-axis That's what I did, JPanel…… -
Java – change the shape of the scatter point
I have thousands of points on JfreeChart's scatter chart //* I'm using shapeutilities, but when I use xyitemrenderer /…… -
Java – fileoutputstream: does the “close” method also call “flush”?
I really care about the flush and close methods In my code, I always close my fileoutputstream object But I want to kn……