包含标签：Java 的文章
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Distinguish between single click and double click in Java
I searched the forum and saw this Code: public void mouseClicked(MouseEvent e) { if (e.getClickCount() == …… -
Java – how to set null to integer in spring context
This is only a small part of my background: <property name="a" value="1"/> where a is Integer. How do I set null…… -
java. time：DateTimeParseException for date“20150901023302166”
See English answer > is Java time failing to parse fraction-of-second? two LocalDateTime.parse("20150901023302166",…… -
Java – how to deserialize JSON arrays using gson
I want to use gson to deserialize a JSON array I tried to do it, but I couldn't JSON array: [ {"ID":1,"Title":"Lio…… -
Java – processing the file name * parameter with spaces through RFC 5987, resulting in “in the file name”
I have some legacy code I'm working on (so I can't just use the URL with the encoded file name component), allowing us…… -
Can Java applets use printers?
Java applet can easily print text / HTML to standard printer drivers (all common platforms win / MAC / Linux)? Do you …… -
Java – reverse method reverses the elements of the queue
This is not a hardware or task This is something I practice myself Given a queue, write a reverse method to reverse th…… -
Java – JScrollPane resizes with variable size content
The contents of my resizable JScrollPane have a minimum width If the JScrollPane is less than this width, a horizontal…… -
Why can’t the Java 7 and eclipse 3.8 compilers compile JDK code with the new Java 7 Diamond operator?
import java.util.*; import java.util.*; public class SimpleArrays { @SafeVarargs public static <T> List<…… -
Java – create multiple threads using a for loop
I'm trying to create multiple threads, the number of which depends on the command line input I know that extending thr…… -
Java – why did my string to string comparison fail?
I have an Android application. I want to check whether the installed application name matches the string passed to the…… -
Java – how to make spring cache store ResponseBody instead of intermediate object
I use spring cache and this method to return the query value as JSON: @RequestMapping("/getById") @ResponseBody @Cache…… -
Java – JMX: how to prevent classloader memory leakage in servlet container?
I want to know whether or how to handle MBeans registered directly or indirectly from applications deployed on servlet…… -
JSF – how to handle multiple submissions before rendering the response?
According to the test report, if the response speed is not fast enough, we may press a button many times, resulting in…… -
Java – understanding managed beans / backing beans
See the English answer > difference between managed bean and backing bean11 I have some trouble, understand correct…… -
Ignore attributes when deserializing Jackson JSON in Java
In the example Class Person{ String name; int age; } If the JSON object is missing the attribute "age", { name…… -
Java relative file path
I have a Java problem that I've been having trouble with: what's a good way to indicate relative file paths Let me be …… -
How does the JavaFX gridpane layout set margins for elements in rows?
I am using the gridpane layout to locate the content in the application I want to know how to set margins for elements…… -
Java – should data sources be defined in the application or application server?
I have developed applications for two different teams (running on the JBoss server) One team has a data source configu…… -
Java – Maven 3 does not update snapshot dependencies from the local repository
I'm trying to use external libraries in my Maven project Since I want the project out of the box on any machine, I don…… -
Is java ArrayList really much slower than C vectors?
I don't want to start another meaningless flame war about whether Java or C is a better language I want to know whethe…… -
Methods – get method parameter values using AspectJ
I use AspectJ to capture method calls Then I need to get the method name and the passed parameter value Line2D line = …… -
Java – spring @ transactional annotation property priority / inheritance
When the calling method itself is transactional, when required propagates, if they are different, will the current met…… -
Java – sun codemodel generic method
Does anyone know how to generate the following generic method declarations using codemodel: public <T> T getValu…… -
Java – JSR 303 custom constraint override
I want to place a set of standard constraints (such as a non empty alphanumeric string with a length of 3 to 240 chara…… -
Java – Guice runtime dependency parameter re injection
About Guice I'm still learning it, but I can understand the basics This question has been asked on the Internet severa…… -
Java generics: inferring types from two parameters
Suppose I have a simple way to handle two lists: public static <B> void foo(List<B> list1,List<B> li…… -
Java EE – warning: JACC: for URL pattern XXX, all methods except the following are found: post, get
In javax faces. webapp. In the facesservlet document, My application does not rely on other HTTP methods (except get a…… -
How do I use function annotations to indicate whether a function requires a function as an argument or returns a function?
You can use function annotations in Python 3 to indicate the type and return value of parameters, as follows: def myfu…… -
Java – how to deploy webapp and create its resources
I had to do this before deploying "myapp. War" on GlassFish 4 >Create JDBC connection pool (/ WEB-INF / glassfish-r…… -
Java – SQL Server 2016: enable TLS 1.2 for SQL server connections
I run SQL Server 2016 on Windows 2012 R2 and I apply tlsv1.0 2 and restarted the VM, https://support.microsoft.com/en-…… -
Java – unable to find the spring namespace for jax-ws
I want to integrate Jax - WS into my spring project Find this link: I adopted it and integrated it into my Application……