Recent questions tagged java

0 votes

92 views

1 answer

java - How to create an object with JNI?

I need to implement some functions into an Android application using NDK and thus JNI. Here's the C code, with my ... the code, it doesn't work. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

267 views

1 answer

java - Which String method: "contains" or "indexOf > -1"?

Which of the following ways is an efficient way of determining substring containment? if (str.indexOf("/") > -1) or if (str.contains("/")) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

613 views

1 answer

java - JPA, Mysql Blob returns data too long

I've got some byte[] fields in my entities, e.g.: @Entity public class ServicePicture implements Serializable { ... - am I missing something? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

105 views

1 answer

java - How to do opposite of of preference attribute android:dependency?

Is there XML attribute that does the exact opposite of android:dependency? What I would like the dependent preference ... it like i had hoped See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

526 views

1 answer

java - javax.xml.bind.UnmarshalException: unexpected element. Expected elements are (none)

I am getting this error, while unmarshalling a string. I have created Java files using JAXB. JAXBContext ... </businessCard> </document> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

118 views

1 answer

java - How to create an instance of an annotation

I am trying to do some Java annotation magic. I must say I am still catching up on annotation tricks and that certain ... all a way to do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

116 views

1 answer

java - Android property animation: how to increase view height?

How to increase the view height using Property Animations in Android? ObjectAnimator a = ObjectAnimator.ofFloat( ... of the view? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

92 views

1 answer

java - Can we start the maven build from the point where it failed

Suppose, I am doing a full build on my large project which has 7 modules and on the 6th module, the build ... build from the point it failed? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

210 views

1 answer

java - org.hibernate.hql.internal.ast.QuerySyntaxException: table is not mapped

I have example web application Hibernate 4.3.5 + Derby database 10.10.1.1+ Glassfish4.0 with IDE NetBeans 8. ... > </class> </hibernate-mapping> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

234 views

1 answer

java - Jaxb, Class has two properties of the same name

with jaxb, i try to read an xml file only a few element in xml file are interesting, so i would like to ... jaxb seem to have problem with flx? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

111 views

1 answer

java - codestyle; put javadoc before or after annotation?

I know that it isn't the most vital of issues, but I just realised that I can put the javadoc comment ... */ private MyOtherClass other; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

305 views

1 answer

java - Shortest path (fewest nodes) for unweighted graph

I'm trying build a method which returns the shortest path from one node to another in an unweighted graph. I ... "); } return directions; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

222 views

1 answer

java - JDBCTemplate set nested POJO with BeanPropertyRowMapper

Given the following example POJO's: (Assume Getters and Setters for all properties) class User { String user_name; ... with tens of fields. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

98 views

1 answer

java - read file in classpath

Here is what I want to do and I am wondering if there is any Spring classes that will help with implementing. ... .sql"))); Any thoughts? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

119 views

1 answer

java - Gradle Maven plugin "install" task does not work with Android library project

I want to install android library project to local maven repository. Here is build.gradle: buildscript { ... compatible with maven plugin? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

432 views

1 answer

java - Singleton lazy vs eager instantiation

If a singleton is implemented as follows, class Singleton { private static Singleton instance = new Singleton(); ... i missing something here? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

111 views

1 answer

java - How can I share multiple files via an Intent?

Here is my code, but this is for a single file solution. Can I share multiple files & uploads like I do for ... ); startActivity(intent); } }); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

192 views

1 answer

java - Unit tests vs integration tests with Spring

I'm working on a Spring MVC project, and I have unit tests for all of the various components in the source ... ask the rest of the community. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

122 views

1 answer

java - HibernateTransactionManager or JpaTransactionManager

Developing application with friend, but ran into a question... I had this code : <bean id="sessionFactory" ... { entityManager.persist(user); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

143 views

1 answer

java - Android how to stop refreshing Fragments on tab change

I have the following code : MainActivity.java package com.erc.library; import java.io.BufferedInputStream; import java. ... , Any help please ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

166 views

1 answer

java - Could not load the Tomcat server configuration

I have installed apache tomcat7 using sudo apt get in ubuntu. I have added apache tomcat 7 to eclipse using ... provided is /usr/share/tomcat7 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

362 views

1 answer

java - Force a transactional rollback without encountering an exception?

I have a method that does a bunch of things; amongst them doing a number of inserts and updates. It's declared ... 'm thinking maybe I can too. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

410 views

1 answer

java - JPA @OneToMany -> Parent - Child Reference (Foreign Key)

i have a Question about referencing ParentEntities from Child Entites ir If i have something like this: Parent. ... Child id paren_id 101 100 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

358 views

1 answer

java - How do I configure Spring and SLF4J so that I can get logging?

I've got a maven & spring app that I want logging in. I'm keen to use SLF4J. I want to put all my ... example on setting this up. Any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

442 views

1 answer

java - SpringRunner vs SpringBootTest

In unit test, what are the differences between @Runwith(SpringRunner.class) & @SpringBootTest? Can you explain to me the use cases of each one? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

217 views

1 answer

java - Is there a way to avoid undeployment memory leaks in Tomcat?

This question is for anyone who's ever tested the "Find leaks" button in the Tomcat manager and got some results ... (an extension of NIEM). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

177 views

1 answer

java - How to use JUnit and Hamcrest together?

I can't understand how JUnit 4.8 should work with Hamcrest matchers. There are some matchers defined inside ... use original hamcrest library? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

159 views

1 answer

java - Declare an object inside or outside a loop?

Is there any performance penalty for the following code snippet? for (int i=0; i<someValue; i++) { Object o = ... to make sure this is the case. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Just Browsing Browsing

Most popular tags