Java
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Which is more suitable for java development Hosting: aptana? Google App Engine？ Slice host?
I'm divided into the benefits of developing Java (non-commercial) web applications and deploying to aptana or Google c…… -
Java – primitive types and in generics Differences between
It may be asked somewhere, but I can't find it Please tell me the exact difference between the two: ArrayList list = n…… -
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Java – run the compiled jar file in Jenkins
I tried to run the executable jar file through Jenkins What I want to achieve here is that I create an executable jar …… -
Java – trim struts 2 text string input
What is the best way to trim this string? Where is the best place to place the trim code? Suppose my JSP has the follo…… -
Multithreading – find tutorials and information on load balancing between threads
I know that the term "load balancing" may be very broad, but the topic I'm trying to explain is more specific. I don't…… -
Java – classloader will not be garbage collected even if there is no GC root
We have one in GlassFish v2 Complex applications running under 1.1 In order to dynamically load our code, we implement…… -
Java object serialization – thread safe?
I am writing a highly concurrent application that extensively modifies MyClass objects The course consists of several …… -
Follow up: there are no enumerated instance controls in Java
This is a follow-up to this question Is this solution waterproof? public final class Thing implements Serializable { …… -
java – . Messages in the properties file do not display UTF-8 characters
As the title indicates, I can only add that if I enter it manually in the HTML file ąę It doesn't matter View parser: …… -
Programming languages – why are closures suddenly useful for optimizing programs to run on multiple cores?
I read an article claiming that closure (or "block") is a useful weapon in "multi-nuclear war", because Now, I'm not t…… -
Java – add jar classpath in Ubuntu
This may be a common problem, but I can't add Classpaths to jar files in Ubuntu I have given all the details I know be…… -
Avoid implementing methods in interfaces – Java
I have the following interface: public interface a { public void m1(); public void m2(); public void m3();…… -
How do you use CouchDB change notifications to make continuous changes from Java?
I'm trying to use CouchDB (continuous) change API in Java and find that after exhausting the current change list, the …… -
How to perform different operations in update() of observer in Java?
I just started using observable, observer and its update () method. When different actions call notifyobservers (), I …… -
Java – static initializer and instance initializer and constructor
There is already an answer to this question: > use of initializers vs constructors in java8 Solution The main diffe…… -
Consider storing serialized Java objects as Cassandra as JSON What is catch?
I'm using Cassandra 1.2 2. I find it easy to use Jackson to map my objects and store JSON and Java in the database I'm…… -
Java – unable to publish ear to WebSphere
I am running rational application developer for WebSphere software (v.8.0.4.1) on windows I have an ear project and I …… -
Get the real file extension – Java code
For security reasons, I want to determine the real file extension How can I do this? Solution If you really want to ge…… -
JAVA_ Home is not defined correctly (only from Jenkins)
Tried to set Jenkins, but my build failed: $ant test Error: JAVA_HOME is not defined correctly. We cannot execute /u…… -
Java – Maven jetty plug-in daemon elements are not allowed here
I'm trying to configure the project's POM XML file I want it to start the jetty server during the test phase To do thi…… -
Java – post a set of custom objects to struts 2 actions
How to publish a set of custom objects to struts 2 operations in Java? For example, if I have the following Java objec…… -
Java – how to verify whether an exception is thrown
In my unit tests using mockito, I want to verify that NullPointerException is not thrown public void testNPENotThrown{…… -
Java – use icons with jcheckbox
I have a swing application that I want to use with icons JCheck@R_244_2419 @I constructed the following icons: JCheck@…… -
Java – how to read specific excel columns using Apache poi
I encountered an excel problem when using Apache poi I can read across lines, but sometimes I'm in a situation where I…… -
Java – Android – listview onitemclick() is not triggered in 4.1 jellybean
I have a user who only installs 4.1 (frozen beans), and listview onitemclick() stops working in my application Events …… -
sun. net. www.http. Httpclient has a memory leak in Tomcat 6
I'm using Tomcat 6.0 18. After Undeploying my application, httpclient seems to hold a reference to webappclassloader, …… -
The spring repository method that returns the Java 8 stream does not close the JDBC connection
I have a spring data repository: @Repository interface SomeRepository extends CrudRepository<Entity,Long> { …… -
Java – Apache camel example inserts a row into a table
I want to exchange Insert body into the database table to get one of my routing conditions >Are there any sample / …… -
Java – no body message is displayed when sending attachments
When I send an attachment, I can't see the body message in the email (message. Settext (this. Getemailbody());) MimeMe…… -
Java – Gmail also extracts messages from sent messages
I have the following code to connect to the inbox of the mail server: Store popStore = popSession.getStore("pop3"); po…… -
Save Java BitSet to DB
Using JPA, I want to be able to save BitSet to the database and pull it back to the program Suppose I have: @Entity @T……