包含标签：Java 的文章
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Java – buildfinished and buildstarted will not work properly
I'm from org apache. tools. ant. Defaultlogger of defaultlogger creates a subclass: public class ExtendedLogger extend…… -
Java – restart jars with root privileges on most, if not all, Linux distributions
I'm developing a Java application that requires root / administrator privileges to run properly If the user does not s…… -
Java – project Euler: procedural optimization of question 7?
So I call myself a fairly novice programmer because I mainly focus on my school hardware rather than many computer sci…… -
Java – why not = = work on a string?
See English answers > How do I compare strings in Java? 23 When I run this code, whenever I type "boy", it will onl…… -
Java generic pairs stored in HashMap cannot correctly retrieve key – > value
This is pair java import java.lang.*; import java.util.*; public class Pair<TYPEA,TYPEB> implements Comparabl…… -
Java – sort the vectors of custom objects
How to sort the vectors of custom objects and select the attributes to sort? I do see this question & answer, but …… -
Java – how to enable reasonable default caching for public files in Grails 3 applications?
I have a Grails 3 application with images, CSS and JS files under Src / main / resources / public These use the 'no ca…… -
Java – duplicate resource error using Duplicate Finder plug-in
I have a project consisting of many subprojects Consider the three modules a, B, C. B depends on a and C, depends on a…… -
Java – test the browser at the same time; Received error
Now, I'm trying my first test, which will test browsers chrome, Firefox, ie and safari at the same time But I got the …… -
Can I write “foreach” functions in Java?
In PHP, you can do foreach ($array as $key = > $value) {/ / code. Can you create a function in Java to execute fore…… -
Java – IntelliJ code formatting, keeping / * package * / on the same line
In some cases, it makes sense to use package visibility for certain methods /* package */ int getSpan() { return…… -
How to use multiple threads to execute map, filter and flatmap in rxscala / Java?
How to use multiple threads to run filter, map and flatmap on observable: def withDelay[T](delay: Duration)(t: => T…… -
Java – Lucene search even if it should return no results
I am creating a Lucene search application. I use multiple instances of different analyzers and indexwriters of their i…… -
Differences between different implementations assigned to a wider range of types in Java
I know that assigning subclass implementations to variables of interface type is a best practice to maintain flexibili…… -
Java – layout parameter layout_ Weight is ignored unless layout is also specified on the tag_ Width and layout_ height
I treat this message as an error and cannot run the application <include android:layout_weight="1" layout=…… -
Java – can I use the same POM Redefine imported Maven dependencies in XML?
I'm working in an application server environment, and I'm using BOM to collect dependency information, as follows: <…… -
Java – check if string x is equal to any string in string []
If the string entered by the user is equal to any string in the string array, I try to set a Boolean value of true I i…… -
Java – object cache data structure with “object expiration”
Which data structure in Java is best suited for in memory object caching, where objects have a separate expiration tim…… -
What non free tools do java developers like
Most of the developers I interact with are using eclipse (I prefer NetBeans) and will take advantage of many free plug…… -
Java – upload running files in PHP
I know it sounds strange There is a PHP file on my server, which is responsible for processing the upload The Java pro…… -
Java – class level custom annotations cannot be detected in spring AOP
I tried to intercept classes in spring with the following settings Interceptor @Aspect @Component public class MyInter…… -
Java – how to run a thread repeatedly after a period of time
I want to run a thread (perform some time-consuming tasks in the background and do not update the UI). It just downloa…… -
Java – invalid name pattern when trying to pass custom Oracle type object mapping
Java spring customizes the Oracle type as a parameter and gets the following error I don't understand what the invalid…… -
Java: faster overloading or if / else
I have children's classes, and each class has other members who bring different types of value There may be longobject…… -
String garbage collection in Java: or why consume so much memory
Solved I try to understand why one of my unit tests consumes so much memory The first thing I do is run a test and mea…… -
Java – do string parameters usually escape automatically in Web services?
Today, I found that a simple% of the string parameters passed from the client to the server can lead to an incorrect r…… -
How to convert date to hexadecimal in Java
I am not familiar with Java. I need to get the current datetime and express it as a string, for example: #1:1357902468…… -
Java – add index columns to existing spark’s dataframe
I use java to run spark 1.5 I need to attach the ID / index column to the existing dataframe, for example: +---------+…… -
Java – activity leaked popupwindow window after rotation
When I rotate the device while displaying PopupMenu, a windowleft error appears That's my PopupMenu: private void show…… -
MVVM – f#async / await in view model
My ViewModel in F # I'm trying to use f# instead of c# to implement my ViewModel I'm following this article (by the wa…… -
Val in Java – Lombok generates an “incompatible type” error in IntelliJ, but it still compiles well
I found this Code: Class<? extends Enum> enumClass = Class.forName(Charsets.class.getName()) …… -
Compare the Java era string with the PHP era date
Here I have a Java string era date. I want to compare and add data <?PHP if($_SERVER['REQUEST_METHOD']=='POST'){ //……