包含标签：Java 的文章
-
JPA best practices and Java 8 optional return?
I like the semantics of Java 8. I use a lot of such code in my Dao: public Optional<User> findBy(String username…… -
Accessing Gmail from Java
I need a library that allows me to use Java for email operations in Gmail (e.g. send / receive mail) Solution Have you…… -
Java – the best GWT codesplitting design encapsulates “modules”
At present, I am facing a challenging problem related to GWT code segmentation. I hope to provide some help I'm curren…… -
How to send custom XML packets using Java’s smack API?
I use the smack API in Java to connect to my XMPP server I want to send a customized message package as follows: <m…… -
ToString Java array
I have several arrays in a class I want to implement toString () to print all the values What should I do? public Stri…… -
Nsurlconnection / cfurlconnection HTTP load failed (kcfstreamerdomainssl, – 9813) IOS
At present, I am using a soap web service in IOS. My source code is as follows NSString *xml = requestXMLToSent; NSSt…… -
Java – how do I know if an array can be sorted by one or more swaps?
Given an array containing n elements, can we sort the array in ascending order by performing an exchange operation? Fo…… -
Unknown column in Java hibernate ‘field list’
I need a help When I use getallstreets() method, I have HQL error: org.hibernate.exception.sqlGrammarException: UnkNow…… -
Java – missing “run JUnit test”
I created a JUnit 4 test in eclipse by right clicking the Java class and selecting new JUnit test case When I right-cl…… -
Java – assignment of value in array index
Please check the following code snippet to let me know how to output 1.2 int[] a = { 1,2,3,4 }; int[] b = { 2,1,0 }; S…… -
Java – how do I get the server port number when using a JMX server with a transient port?
When launching a Java application using the following options: -Dcom.sun.management.jmxremote -Dcom.sun.management.jmx…… -
Java – annotation processor output in maven
I'm using JSR 269 as a compile - time method to analyze code and fail it if necessary Solution I think you encountered…… -
Java – can eclipse refresh Tomcat applications automatically?
I use eclipse indigo (EE) to build applications in the Java framework vaadin, Otherwise, when I refresh the applicatio…… -
Java – images are not cached locally (using the general image loader) – slow image loading time
Problem Description: Image loading is very slow... I thought using the "universal image loader" to cache images on the…… -
URL routing in Java
From other web frameworks, I'm used to being able to map part of a URL to method parameters I know web XML provides a …… -
Multithreading – how to reliably pass a signal to another thread in a pthread?
I tried to write a simple thread pool program in pthread However, it seems that pthread_ cond_ Signal will not block, …… -
The Java – JAXB xmladapter method does not throw an exception
I am using JAXB xmladapter to organize and ungroup Boolean values The application's XML file will also be accessed by …… -
Java – how to suppress multiple findbugs warnings on the same line of code
I recently found findbugs @ edu umd. cs. findbugs. annotations. Suppresswarnings annotation, which is very cool and al…… -
Java – when is it appropriate to use blank final variables?
I'm looking at another question about final variables and notice that you can declare final variables without initiali…… -
Java – does the terminal operation on the stream close the source?
See English answers > do terminal operations close the stream? two Path directory = Paths.get(/* some directory */)…… -
Java – audiorecord object is not initialized in the project
When I try to record audio with my nexus 5 using the following code record = new AudioRecord(MediaRecorder.AudioSource…… -
Java – APK extension file – application license – developer account – not_ Licensed response
I'm trying to use the APK file extension for Android APKExpansionPolicy aep = new APKExpansionPolicy(mContext,new AESO…… -
Java – statet in eclipse and R
I've managed to install statet into eclipse. I have a java project called "test" with some code I hope to be able to T…… -
Using guava and GWT
Someone can tell me what needs to be done to enable guava support in GWT I have downloaded guava R07, where there are …… -
Java streams: grouping lists into maps
How do I use Java streams to do the following? Suppose I have the following classes: class Foo { Bar b; } class B…… -
Java – transform and parse JSON
I'm using retrofit with Jackson For some reason, I cannot resolve the following JSON: [ { "ProfileImage": …… -
Java – log4j is recorded twice in different formats
I don't know why log4j is attached twice in different formats Has anyone met before? This is my log4j XML file: <lo…… -
How to use java to access spreadsheets in open document format (. ODS)?
I want to read, write and create spreadsheets in Java open document format And I want the generated Java program to ru…… -
Java – policy design pattern – select policies and counters
I'm programming in Java, but this is a more design question, so any OO programmer can answer this question I have a qu…… -
We can reject serialized Java objects instead of giving the transient keyword
We can avoid serializing fields by using the transient keyword Solution http://java.sun.com/javase/6/docs/platform/ser…… -
Java – mybatis column mapping
I use mybatis 3.0 3 and there is a problem: some columns in the database have underlined names, which should be mapped…… -
Java – call stream() Reduce () in the list has only one element
I am a new function programmer of Java and want to know how I should write code to avoid NPE (for example): myList.str……