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
580
views
1
answer
java - JOptionPane YES/No Options Confirm Dialog Box Issue
I've created a JOptionPane and it only has two buttons YES_NO_OPTION . After JOptionPane.showConfirmDialog pops out , I ... Exception ex) { } } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
276
views
1
answer
java - Where does the slf4j log file get saved?
I have the followed imports: import org.slf4j.Logger; import org.slf4j.LoggerFactory; and the following instantiation: ... to fix the problem. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
135
views
1
answer
java - Excluding tests from being run in IntellIJ
Is it no option to exclude some tests in IntelliJ IDEA Ultimate? I want to run unit tests in IntelliJ but ... seperatly from the unit tests. 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 - Check instanceof in stream
I have the following expression: scheduleIntervalContainers.stream() .filter(sic -> ((ScheduleIntervalContainer) sic). ... before the filter? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
278
views
1
answer
java - Why does BufferedInputStream copy a field to a local variable rather than use the field directly
When I read the source code from java.io.BufferedInputStream.getInIfOpen(), I am confused about why it wrote ... give a reasonable explanation? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
250
views
1
answer
java - Method org.postgresql.jdbc.PgConnection.createClob() is not yet implemented
How can I solve this error: java.lang.reflect.InvocationTargetException: null at sun.reflect.NativeMethodAccessorImpl ... common frames omitted See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
475
views
1
answer
java - Re-run Spring Boot Configuration Annotation Processor to update generated metadata
I've added: <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor ... not have instructions. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
273
views
1
answer
java - Checking that a List is not empty in Hamcrest
I was wondering if anyone knew of a way to check if a List is empty using assertThat() and Matchers? Best way ... way to do this in Hamcrest. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
152
views
1
answer
java - How to access "Activity.this" in Kotlin?
I have this piece of Java code: MaterialDialog builder = new MaterialDialog.Builder(MainActivity.this) I want ... breaks at MainActivity.this. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
440
views
1
answer
java - photo/image-to-sketch algorithm
Does anyone have an idea, link, library, source code, ... on how to convert photo's and images (bitmaps) to ... JPEG photo's to sketchy images. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
151
views
1
answer
java - Android Edit Bitmap Channels
It's possible to access the alpha channel of a given bitmap with extractAlpha(), but I haven't been able ... into a Bitmap with Android? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
317
views
1
answer
java - How to call fragment method from main activity
I have method in fragment class. I want to call that method from main activity but I don't want to ... using FragmentById (or) FragmentByTag? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
207
views
1
answer
java - Spring Integration Test is Slow with Autowiring
I am trying to speed up the Integration tests in our environment. All our classes are autowired. In our ... would end up including everything) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
99
views
1
answer
java - EclipseLinkJpaVendorAdapter instead of HibernateJpaVendorAdapter issue
using an application which consist of JSF, Spring and Hibernate. My example runs normally, then ... without LoadTimeWeaver specified See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
179
views
1
answer
java - Private Methods Over Public Methods
I was examining the StringTokenizer.java class and there were a few questions that came to mind. I noticed ... first sample more beneficial? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
181
views
1
answer
java - Singleton and Exception
Whats the best way to design a singleton class that could throw an exception? Here I have a Singleton (using ... getInstance(); } Thanks again. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
293
views
1
answer
java - How do i know which default settings are enabled for Sun JVM?
i want to try CompressedOops on my JVM. No I wonder if it might be enabled by default. I run this ... with their default values? regards Janning See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
172
views
1
answer
java - How to properly convert domain entities to DTOs while considering scalability & testability
I have read several articles and Stackoverflow posts for converting domain objects to DTOs and tried them out in ... project? 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
210
views
1
answer
java - "unable to find valid certification path to requested target", but browser says it's OK
I'm developing a Java application that connects to SOAP services exposed at https://ut.eurodw.eu/ (test ... use my own Tomcat installation. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
117
views
1
answer
java - Javascript Callback function pass to Android
I have a javascript interface implemented in Java that is called by my javascript code that is loaded in the webview. ... best way to do it? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
281
views
1
answer
java - Trim string field in JPA
I have a db table with column of datatype char(20). I'm not allowed to change it to a varchar. I'm ... offering no help on this. Any ideas? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
296
views
1
answer
java - MyBatis, how to get the auto generated key of an insert? [MySql]
how can I get the generated key of an insert with MyBatis? I read many pages about this question but I'm ... key of this insert? Thanks! 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 - Spring Web MVC: Use same request mapping for request parameter and path variable
Is there a way to express that my Spring Web MVC controller method should be matched either by a request ... discussion inside Javi's answer. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
146
views
1
answer
java - What are GC roots for classes?
In Java, there are special objects called Garbage Collection Roots (GC roots). They serve as a root objects for ... GC roots for the classes? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
212
views
1
answer
java - Is it a bad idea to declare a final static method?
I understand that in this code: class Foo { public static void method() { System.out.println("in Foo"); } ... behaviour of using final is..) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
260
views
1
answer
java - Eclipse WTP: How do I enable SSL on Tomcat?
Eclipse WTP creates its own server.xml file which it places in some folder which configures the tomcat instance you ... " sslProtocol="TLS" /> See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
331
views
1
answer
java - How to check heap usage of a running JVM from the command line?
Can I check heap usage of a running JVM from the commandline, I mean the actual usage rather than the ... running in Jetty Application server See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
313
views
1
answer
java - Why is the StringBuilder chaining pattern sb.append(x).append(y) faster than regular sb.append(x); sb.append(y)?
I have a microbenchmark that shows very strange results: @BenchmarkMode(Mode.Throughput) @Fork(1) @State(Scope.Thread) ... how that is possible? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
Page:
« prev
1
...
289
290
291
292
293
294
295
296
297
298
299
...
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] 无法git clone:中文路径?
[2] js获取vue中的方法以后this改变怎么办?
[3] 输入正则表达式 匹配其他项
[4] format - Trouble with downloading with youtube -dl (python)
[5] vue.js - Vue CLI plugin CSS preprocessor (sass) transpile in parent
[6] Failed to parse the incoming connection with IO error type=1
[7]vuex mounted中取不到mapState的值
[8] 在php-fpm环境中,为什么不建议使用mysql长连接,而却允许redis长连接
[9] 小程序web-view 如何重载连接或者刷新?
[10] 长页面制作时,编辑器每次更改保存,页面就刷新回顶部,不得不再次滚动到下面浏览器效果。很不方便。
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
...