Recent questions tagged java

0 votes

142 views

1 answer

java - Using @RequestParam for multipartfile is a right way?

I'm developing a spring mvc application and I want to handle multipart request in my controller. In the request I' ... kind of error in future? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

436 views

1 answer

java - rs.last() gives Invalid operation for forward only resultset : last

I am trying to get the row count of a result set by: rs.last(); int row_count = ... (connectionString, oracle_db_username, oracle_db_password); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

449 views

1 answer

java - Could not reserve enough space for object heap to start JVM

Just faced with strange issue. When i type java -version i got Error occurred during initialization of VM Could ... free, 0k cached Thank you See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

372 views

1 answer

java - Trouble starting Hibernate Validator due to Bean Validation API

I'm trying to use Hibernate Validator in my project, but it isn't working. On the following line: SessionFactory ... t seem to have any effect. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

216 views

1 answer

java - How to catch exceptions in FutureTask

After finding that FutureTask running in a Executors.newCachedThreadPool() on Java 1.6 (and from Eclipse) swallows ... any reason for this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

320 views

1 answer

java - String's replaceAll() method and escape characters

The line System.out.println(""); prints a single back-slash (). And System.out.println(""); prints double ... . Can someone please explain this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

298 views

1 answer

java - How can i replace type_orientation (is deprecated) for android 4.0.3?

Hello I want to use the type type_orientation but it is deprecated for the android 4.0.3 . I use it for the ... you very much for your help!!! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

119 views

1 answer

java - Why can i have only one instance of Calendar object

I was just wondering... why can i have only one instance of Calendar object. Is there a reason for it to be ... didn't give me any answers. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

283 views

1 answer

java - Plug-in com.android.ide.eclipse.adt was unable to load class android

I am new to android development My eclipse was working properly. But now when I start a new project it give ... and run. Why this is happening See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

109 views

1 answer

java - Using unique constraint on Hibernate JPA2

How can I implement my unique constraints on the hibernate POJO's? assuming the database doesn't contain any. I ... to more than one column? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

316 views

1 answer

java - CompletableFuture: Waiting for first one normally return?

I have some CompletableFutures and I want to run them in parallel, waiting for the first that returns normally. I ... { e.printStackTrace(); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

263 views

1 answer

java - SQLException: No suitable Driver Found for jdbc:oracle:thin:@//localhost:1521/orcl

I am trying to develop a Java EE application that connect to an Oracle database from eb service class but ... 4.1] at org.apache.cxf.phase.PhaseInterceptorChain.resume(PhaseInterce...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

394 views

1 answer

java - What happens if you specify max heap size greater than available RAM

Asked in an interview. What happens if you specify max heap size (Xmx) greater than available RAM? I also ... Xms) greater than available RAM? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

219 views

1 answer

java - No bean named 'transactionManager' is defined

I have configured two persistent units with the entity managers set up as show below: <bean id=" ... with Jpa/Hibernate. Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

445 views

1 answer

java - JSTL forEach reverse order

Using JSTL's forEach tag, is it possible to iterate in reverse order? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

271 views

1 answer

java - Rounding Up To The Nearest Hundred

I came to a part in my java program where I need to round up to the nearest hundred and thought that there was ... 99->100 14->100 452->500 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

252 views

1 answer

java - Get HttpServletRequest in Jax Rs / Appfuse application?

I created a basic application shell with AppFuse, and followed the AppFuse tutorial to create a a simple RESTful service ... :1358) ... 37 more See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

518 views

1 answer

java - ERROR StatusLogger Log4j2 could not find a logging implementation

I am trying to implement log4j 2 but it keeps throwing the following error. > ERROR StatusLogger Log4j2 could not ... : Any help is appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

102 views

1 answer

java - Maven 3 Artifact problem

I made a new struts project in eclipse using the struts2-archtype-starter. A few errors where in my project already ... > </build> </project> See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

358 views

1 answer

java - Get milliseconds until midnight

I'm creating an Android widget that I want to update every night at midnight. I am using an AlarmManager and ... midnight? Thank you in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

211 views

1 answer

java - How to get localized short day-in-week name (Mo/Tu/We/Th...)

Can I get localized short day-in-week name (Mo/Tu/We/Th/Fr/Sa/Su for English) in Java? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

349 views

1 answer

java - Using @Mock and @InjectMocks

I'm currently studying the Mockito framework and I've created several test cases using Mockito. But then I read that ... } } What am I missing? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

455 views

1 answer

java - Always show map marker title in Android

I'm adding default Marker to GoogleMap the following way: GoogleMap map = ((MapFragment) getFragmentManager(). ... hiding them on touch. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

191 views

1 answer

java - HashSet look-up complexity?

A look-up operation OR contains for single can be O(n) in worst-case right ? So, for n elements look up in hashSet will be O(n^2)? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

291 views

1 answer

java - How to write a matcher that is not equal to something

I am trying to create a mock for a call. Say I have this method I am trying to stub out: class ClassA { ... match anyString() other than "a"? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

179 views

1 answer

java - Why aren't Enumerations Iterable?

In Java 5 and above you have the foreach loop, which works magically on anything that implements Iterable: for ... API called 'Enumeration'. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

110 views

1 answer

java - Split XML in Multiple XML files

i have following xml file as input .... <?xml version="1.0" encoding="ISO-8859-1"?> <T0020 xsi: ... IRP_ACCOUNT. Can somebody please help me ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

256 views

1 answer

java - Mixing JSF tags with JSTL tags gives strange results

I have this piece of code: <c:if test="#{utils.getCounterOfCharOccurence(hideTypes, ';') != 0}"> <ui:repeat ... forever... Do you know why? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Just Browsing Browsing

Most popular tags