Recent questions tagged java

0 votes

216 views

1 answer

java - Inherit annotations from abstract class?

Can I somehow group a set of annotations on an abstract class, and every class that extends this class ... annotation private PersonDao dao; } See Question&Answers more detail:os...

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

0 votes

206 views

1 answer

java - Spring Test returning 401 for unsecured URLs

I am using Spring for MVC tests Here is my test class @RunWith(SpringRunner.class) @WebMvcTest public class ... I doing something wrong? See Question&Answers more detail:os...

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

0 votes

361 views

1 answer

java - How to avoid surrounding html head tags in Jsoup parse

Using Jsoup i try to parse the given html content. After Jsoup.parse() the html output append html, head and body ... of text.</p> Please help. See Question&Answers more detail:os...

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

0 votes

140 views

1 answer

java - Should I close a StringReader?

I use a StringReader to turn a string into something I can upload to an SFTP server (it takes a stream). Is ... than it perhaps needs to be. See Question&Answers more detail:os...

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

0 votes

642 views

1 answer

java - Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1

while sending mail I am getting this error java.lang.RuntimeException: javax.mail.SendFailedException: Sending failed; ... . Thanks in Advance. See Question&Answers more detail:os...

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

0 votes

192 views

1 answer

java - Force GSON to use specific constructor

public class UserAction { private final UUID uuid; private String userId; /* more fields, setters and getters here * ... can I achieve that ? See Question&Answers more detail:os...

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

0 votes

410 views

1 answer

java - How to hide an SWT composite so that it takes no space?

I need to hide a composite (and all children inside). Just setting setVisible(false) will keep the space of ... ); compToHide.setVisible(false); See Question&Answers more detail:os...

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

0 votes

209 views

1 answer

java - How to change maven build directory?

I have a maven project which I compile with Netbeans. I there a way to specify a different build directory ... code is copied after compilation? See Question&Answers more detail:os...

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

0 votes

236 views

1 answer

java - What is the point of T extends SomeClass?

What is the difference with a method declaration like this: public <T extends SomeClass> void doSomething(T obj) { ... at all in this instance? See Question&Answers more detail:os...

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

0 votes

232 views

1 answer

java - Creating a fixed-size Stack

I want to create a Stack in Java, but fix the size. For example, create a new Stack, set the size to ... it is impossible. Please educate me! See Question&Answers more detail:os...

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

0 votes

213 views

1 answer

java - How to use Jenkins parameterized builds?

Jenkins allows you to parameterize builds, but I can't figure out how to actually make use of it: Say I ... value anyways? Thanks in advance! See Question&Answers more detail:os...

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

0 votes

493 views

1 answer

java - Random boolean with weight or bias

I need to generate some random booleans. However I need to be able to specify the probability of ... nextBoolean(float probability) method. See Question&Answers more detail:os...

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

0 votes

239 views

1 answer

java - Is an ArrayList or a LinkedList better for sorting?

I want to use data structure that needs to be sorted every now and again. The size of the data structure ... algorithm is better to use? See Question&Answers more detail:os...

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

0 votes

867 views

1 answer

java - Error:Could not initialize class com.android.sdklib.repositoryv2.AndroidSdkHandler

I want to build this project with Android Studio at launching, but take a error. Stacktrace is here See Question&Answers more detail:os...

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

0 votes

163 views

1 answer

java - SimpleDateFormat is not parsing the milliseconds correctly

Background: In my database table, I have two timestamps timeStamp1 = 2011-08-23 14:57:26.662 timeStamp2 = ... m doing wrong. Any suggestions? See Question&Answers more detail:os...

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

0 votes

222 views

1 answer

java - Are arithmetic operations on literals calculated at compile time or run time?

I have the following: double timeInMinutes = (double) timeInMilliseconds / (1000 * 60); Is the operation (1000 * ... even though they could be. See Question&Answers more detail:os...

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

0 votes

412 views

1 answer

java - How to check if it's Saturday/Sunday?

What this code does is print the dates of the current week from Monday to Friday. It works fine, but I want ... for the solution for hours... See Question&Answers more detail:os...

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

0 votes

313 views

1 answer

java - Generic OR instead of AND <T extends Number | CharSequence>

Is it possible to generically parameterize a method accepting EITHER ClassA OR InterfaceB ? Does Not Compile Due to | ... a string of chars"); See Question&Answers more detail:os...

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

0 votes

461 views

1 answer

java - Checkstyle "Method Not Designed For Extension" error being incorrectly issued?

I'm using Checkstyle and am getting an error about this method: public final String getAdmitCodeStatus() { return ... at me about this method? See Question&Answers more detail:os...

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

0 votes

258 views

1 answer

java - How to manually trigger spring validation?

The annotated spring validation on fields of a POJO works when it is created from json request body. However, when I ... .errors = errors; } } See Question&Answers more detail:os...

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

0 votes

181 views

1 answer

java - Always Round UP a Double

How could I always round up a double to an int, and never round it down. I know of Math.round(double), but I ... 3.2, it gets rounded to 4. See Question&Answers more detail:os...

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

0 votes

475 views

1 answer

java - How to use spring Repository without @Id?

I'm using spring CrudRepository throughout my application. Now I want to also create one for an @Entity that ... <T, ID extends Serializable> See Question&Answers more detail:os...

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

0 votes

442 views

1 answer

java - onPostExecute not called after completion AsyncTask

For some reason my onPostExecute() is not called after my AsyncTask finishes. My class decleration: public class ... it just finishes. Thanks See Question&Answers more detail:os...

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

0 votes

226 views

1 answer

java - Gradle compileJava task warning: [options] bootstrap class path not set in conjunction with -source 1.6

Below is the content of the build.gradle file: apply plugin: 'java' archivesBaseName = 'foo-bar' version = '1.0' ... --------- What do? See Question&Answers more detail:os...

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

0 votes

195 views

1 answer

java - How do I write hql query with cast?

I need to combine 2 tables using hql, both are having common column, but table1 common column is integer and ... the query using hql query? See Question&Answers more detail:os...

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

0 votes

527 views

1 answer

java - JPQL Like Case Insensitive

I want to search data in User table by name case insensitive. @Repository public interface UserRepository extends JpaRepository ... I place '%'? See Question&Answers more detail:os...

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

0 votes

241 views

1 answer

java - Deadlock caused by thread.join() in a static block

I came across a deadlock scenario which can be summarized as the StaticDeadlock class shown below. This simple program ... getClass(); } } } See Question&Answers more detail:os...

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

0 votes

264 views

1 answer

java - Adding Columns to JTable dynamically

I have an empty JTable, absolutely nothing in it. I need to dynamically generate its table columns in a ... .run(EventDispatchThread.java:122) 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