Recent Posts
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Java – elasticsearch – using filterbuilders
I'm new to elasticsearch and couchbase I'm building a sample Java application to learn more about elasticsearch and co…… -
Java – Eclipse’s $fall-through $annotation standard?
I use eclipse, so I use / / $fall - through $annotation, which is a common practice in switch statements and so on But…… -
How to run Java programs on the server?
I've made a will The data in CSV file is stored in the Java application of MySQL database Now my client wants to uploa…… -
Java – when using HashMap, the values and keys are guaranteed to be in the same order during iteration?
When I iterate over values or keys, are they related? Map the second key graph to the second value? Solution No, not n…… -
Java – create immutable objects using JAXB
I am using JAXB to create Java objects from XSD files I'm creating immutable wrappers to hide JAXB generated objects (…… -
How to configure Xdebug using Wamp
I'm using Wamp 2.0 and trying to install the Xdebug extension for PHP I have followed all the steps written here http:…… -
javax. Persistence field, comment of getter or setter?
I am learning hibernate and Java persistence API I have a @ entity class that needs to annotate each field I've listed…… -
Create an array without declaring size – Java
I've been discussing the same problem, but I can't find the same one as me I want to create an array without declaring…… -
JUnit – main difference: mockito and jmockit
This is what I found when I first tried to use jmockit I must admit that I found the jmockit document very concise abo…… -
JMX – MBean simple chart monitor
I have some JMX beans that expose performance information in my application I want to draw an MBean attribute in the d…… -
Does Java – mybatis implement JPA?
An easy question, I think Solution No, ibatis is not an ORM mapper like hibernate, so it does not implement JPA JPA is…… -
Java – spring does not have an XML hibernate mapping class
In my ApplicationContext XML, this is how I map XML to POJO How do I map directories to class files without creating X…… -
How do I attach to a Java exception?
I am a novice and general exception to Java In my previous days of C / Perl programming, when I wrote a library functi…… -
Java – server 415 response code
I'm using jetty web server and Jersey for rest processing I define: @POST @Path("/sendMessage") @Consumes ({MediaType.…… -
Java – let Android applications listen to shared links
When a user shares a URL from another application (such as a browser), I want my Android application to appear as an o…… -
Sort the array by length, then alphabetically
How do I arrange arrays alphabetically? I have a list of numbers that I'm getting: Something1 Something10 Something2 S…… -
Java – how can pattern search be faster?
I'm processing about 1GB of incremental files and I want to search for a specific pattern Solution Basically, what you…… -
Unit test cases using JUnit (robolectric or mockito or both in Android)
This is the first time I have written unit test cases in Android So I searched a lot of things >Robolectric framewo…… -
Java EE – GlassFish V3 domain server cannot start The port is occupied
I imagine this is a very general mistake I can't seem to find any files I'm just trying to run a Java Web project with…… -
Java – how do you ensure that multiple threads can safely access class fields?
How do you maintain thread safety when accessing class fields through getter methods through multiple threads? Is the …… -
Multithreading – creating threaded local objects on Scala
I'm writing a computing library in scala Similar functions I grouped into local Scala singleton objects containing som…… -
Java – run “MVN package” on “build project” in eclipse
I have Maven java project during the solar eclipse I right click the project and select "build project". I want "MVN p…… -
Java – why can’t object [] be converted to string []
>No error Object[] a = new String[]{"12","34","56"}; String[] b = (String[]) a; >No error Object a = new String[…… -
Simple adapter problem, fine tune text image Java,Android
Greetings to all ArrayAdapter healthadapter = ArrayAdapter.createFromResource( this,R.array.health…… -
Java – how to determine if the incoming connection is from the local computer
I have a socketserver that accepts incoming connections For security reasons, I should only allow local connections (f…… -
Java – how to limit the file types uploaded to spring mvc3 controller
I am using spring MVC 3 to handle the file upload of my web application Now, I can limit the size of the file being up…… -
Java – how to determine if the incoming connection is from the local computer
I have a socketserver that accepts incoming connections For security reasons, I should only allow local connections (f…… -
Java – retrieves the first number of a number
See the English answer > return first digit of an integer18 int number = 534; String numberString = Integer.toStrin…… -
java – PropertyNotFoundException：Target Unreachable,’null’returns null
See the English answer > identifying and solving javax el. Propertynotfoundexception: target unreachable7 WARNING: …… -
Java – NoClassDefFoundError is running a valid jar (compiled with dependencies), although it has common httpclient and httpcomponents dependencies in POM
I tried to automate a simple user behavior by using selenium webdriver under the main method (not under test) "Excepti…… -
Java – is it OK to have an ’empty’ class that extends another class?
Suppose I have a class foo, which has a pile of logic, and another class bar is basically the same However, since Foo …… -
Math in Java What is the algorithm behind pow()?
I've just started using Java. As my first project, I'm writing a program to find the root of a given number (in this c……