Recent Posts
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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 – 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 – 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 – 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…… -
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…… -
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…… -
Java – let actionlistener listen for changes in jtextfield instead of just entering?
So you may know that if you have a text field and add an actionlistener, it will only listen to the buttons However, I…… -
Processing lists using rxjava and retrofit
I have several API calls (sequential, asynchronous), some of which return lists My API interface is as follows @GET("/…… -
Java – replace cutycapt
Is there any alternative to cutycapt... That can be accessed using the Java library In short, cutycapt is a cross plat…… -
Java – what are the benefits of using “import static”?
What are the benefits of using "import static"? Solution In general, you should use the static import very sparingly O…… -
Java – does hibernate 4 and ehcache need ehcache core library?
I tried to upgrade my hibernate 3 application to hibernate 4 The application uses ehcache When upgrading to hibernate …… -
Can the Java – hibernate tool generate JPA POJOs?
Can I know if the Eclipse Plug-in hibernate tool can be used to generate JPA entity @ entity? The generated java files…… -
Java – the relationship between bytecode instructions and processor operations
The Java specification guarantees that the original variable assignment is always atomic (long and double type expecte…… -
Java 8u31 plug-ins cause signed applets to load much more slowly
I've noticed that signed applets load much slower with the latest plug-ins (included in Java 8u31 and 7u75) I have deb…… -
Java – why does switching from infinite loop to TimerTask cause CPU utilization to decrease?
I wrote a daemon with the following structure: @ h_ 502_ 2@while ( true ) { // do some stuff Thread.sleep( 1000 ); } I…… -
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…… -
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 – 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…… -
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…… -
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…… -
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…… -
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…… -
The package imported by Java does not exist
I'm trying to use pdf@R_688_2419 @To write a simple PDF file, but the problem is that I received an error: cannot find…… -
Error when using logmanager (l4j2) and Java 8 (java.lang.reflect.annotatedelement cannot be resolved)
When I switched the JDK version of a new project from 7u45 to 8u20, I encountered a strange error At the beginning of …… -
Multithreading – synchronous counter in clojure
If I want to keep a global counter (for example, count the number of incoming requests across multiple threads), the b…… -
Java – servlet filter “proxy”, which only acts on the response of the remote endpoint
I need that some HTTP requests must be redirected to the spring boot web application / service, but on the requester s…… -
Limit the length of content obtained by Java httpurlconnection
Yes, so I started to create a java download manager project that worked well The only problem I see so far is when I a…… -
Java – JSTL string comparison always returns false
I'm trying string comparison <c:if test="${dept eq 'account'}"></c:if> But this always returns false I che…… -
Java – on IntelliJ 13, the created executable jar is invalid or corrupt
I try to create an executable jar from a project on IntelliJ 13 (win8). According to these answers, how to build jars …… -
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 – 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 – Apache POI uses HSSF much faster than xssf – what’s next?
I use Apache POI to parse There were some problems with xlsx files - I received Java Lang. outofmemoryerror: Java heap……