Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged Java
0
votes
125
views
1
answer
java - Where to put a text file in Grails, and how to get the path
I need to read in a .txt file into a groovy class in order to interrogate it line by line. But I am not ... avail. Any body have any pointers? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
233
views
1
answer
java - Need simple explanation how "lock striping" works with ConcurrentHashMap
According to Java Concurrency in Practice, chapter 11.4.3 says: Lock splitting can sometimes be extended to partition ... :) Thanks in advance. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
164
views
1
answer
java - Correct way to deploy WAR files in docker image
What is the docker way to deploy java projects in a docker container? Do I copy the war into webapps: FROM ... war instead of the war file? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
290
views
1
answer
java - Changing the generated name of a foreign key in Hibernate
@OneToOne() @JoinColumn(name="vehicle_id", referencedColumnName="vehicleId") public Vehicle getVehicle() { return ... for example. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
147
views
1
answer
java - Threads per Processor
In Java, is there a programmatic way to find out how many concurrent threads are supported by a CPU? Update To ... for every single one of them. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
301
views
1
answer
java - How to forget a wireless network in android programmatically?
I am working on an app which wifi , where user will be asked to enter password for the scanned network ... wifimanager? Or any other solution? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
358
views
1
answer
java - Log4j output not displayed in Eclipse console
For some reason my Eclipse console no longer displays Log4j INFO and DEBUG statements when I run JUnit tests. In ... , Build id: 20100617-1415 See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
251
views
1
answer
java - Lightweight JMS broker
I'm looking for a small and yet efficient enough lightweight JMS broker solution with no or minimum of ... custom bunch of classes. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
144
views
1
answer
java - Loading a Class from a String
I want to instantiate a class by the value of a String. I found several tutorials that show several methods for ... me there is a better way. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
142
views
1
answer
java - Which version of XPATH and XSLT am I using..?
How to know which version of XPATH and XSLT am I using...? Say I have installed JDK 1.7 then which version of XPATH and XSLT do I have..? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
121
views
1
answer
java - Fastest algorithm to check if a number is pandigital?
Pandigital number is a number that contains the digits 1..number length. For example 123, 4312 and 967412385. I ... the same time as @andras. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
418
views
1
answer
java - Hibernate (JPA) inheritance mapping of abstract super classes
My data model represents legal entities, such as a Business or a Person. Both are tax-paying entities, and ... be taking for this situation? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
309
views
1
answer
java - Can @PathVariable return null if it's not found?
Is it possible to make the @PathVariable to return null if the path variable is not in the url? ... @PathVariable [example] in @RequestMapping See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
166
views
1
answer
java - Why does ScheduledThreadPoolExecutor only accept a fixed number of threads?
I may imagine some tasks scheduled to take a very long time and ScheduledThreadPoolExecutor would create additional threads ... is that so ? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
235
views
1
answer
java - how to set length of an column in hibernate with maximum length
I want to save an object in data base. I'm using MySQL data base, but when I try it I get an ... the length of my column using hibernate? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
254
views
1
answer
java - JUnit: testing helper class with only static methods
I am testing a helper class with only static methods with JUnit4 and Cobertura. Testing methods was easy task ... class is quite helpful. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
175
views
1
answer
java - Safely clearing Hibernate session in the middle of large transaction
I am using Spring+Hibernate for an operation which requires creating and updating literally hundreds of thousands of ... you for the answers. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
113
views
1
answer
java - android - what is message queue native poll once in android?
I know that threads have a message queue and handlers are able to push runnables or messages to them, but ... find the profiler result below. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
360
views
1
answer
java - JPA: When to choose Multivalued Association vs. Element Collection Mapping
I would like to better understand the differences between (1) a traditional Multivalued Relationship/Association @Entity -> ... ? Thank you, J. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
360
views
1
answer
java - JAXB generating JAXBElement<String> instead of String
I am using Apache CXF cxf-codegen-plugin Maven plugin to generate sources from WSDL file. ... JAXBElement<String> requestStatusDescription; See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
392
views
1
answer
java - difference between redirect and redirect inside modelandview
In spring controller class to redirect to a url some places all using return "redirect:/abc.htm"; ... there any difference in RedirectAttributes See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
271
views
1
answer
java - Storing and Retrieving ArrayList values from hashmap
I have a hashmap of the following type HashMap<String,ArrayList<Integer>> map=new HashMap<String,ArrayList<Integer>> ... map.put(string,number); See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
326
views
1
answer
java - Successful build in Maven still showing errors in Eclipse
I'm having something quite peculiar here, my build is successful in maven when I type "mvn clean install" however ... can see quartz is here: See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
411
views
1
answer
java - Using Apache HttpClient how to set the TIMEOUT on a request and response
I need to set time out for the Http Request we make to a service (not a web service). We are using ... .fromJson(r); return jsonObj; } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
304
views
1
answer
java - RxJava 2.x: Should I use Flowable or Single/Completable?
I'm developing an Android app using Clean Architecture and I'm migrating it to RxJava 2.x. I have ... /Flowable/Observable in findUser method. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
333
views
1
answer
java - Reading inputStream using BufferedReader.readLine() is too slow
I am using following code. BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream())); String ... line. Please help See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
386
views
1
answer
java - How to test HQL queries?
I'm searching for a fast (really fast) way to test changes to hibernate queries. I have a huge application ... and enable a fast query check? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
900
views
1
answer
java - "The import org.springframework cannot be resolved."
Here is my POM.xml file: <project> <properties> <jdk.version>1.6</jdk.version> <spring.version>3.2.2 ... cannot pick the dependency from there. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
Page:
« prev
1
...
276
277
278
279
280
281
282
283
284
285
286
...
715
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] audio - What are features in signal/image processing using a more tangible or less abstract description
[2] javascript - Set regex for only 2 decimal numbers + dot + comma with jquery validator plugin
[3] webstorm git环境下 安装 node_modules 后 文件变更列表一直显示更新中不加载数据
[4] version control - How would you keep two slightly different repositories updated with the folders/files that they have in common?
[5] java - Setting up a status code for a Response Entity
[6] javascript - How to implement onclick function in anchor tag while dealing with Spring MVC
[7] html - CSS section layout with shaped divs
[8] vue项目一打开网页就报这个错?
[9] vue 项目打包后多出几个worker文件,他们是干什么的
[10] 那家技术课堂好一点?
2.1m
questions
2.1m
answers
60
comments
56.9k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
...