Recent Posts
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Java – is it acceptable to use the hamcrest matcher in non test code
I tried to find a clear answer to using hamcrest matchers in non - Test code I have done some research and have some c…… -
Java – is there any way to create a basic array without initialization?
As we know, Java always initializes arrays at creation time That is, new int [1000000] always returns an array with al…… -
How do I turn the monitor on and off in a Java application?
How do I turn the monitor on and off in a Java application? If you want to know why, this is a self-service terminal s…… -
Java – spring MVC passes a list of values from the JSP page to the controller
If I have HTML in < form >, like this: <input type="text" value="someValue1" name="myValues"/> <inp…… -
Java – how to comment that all lines contain some text in eclipse
I'm using eclipse to cook Java Now, when I want to comment on all lines containing specific text / variables, I have e…… -
Java – Lucene index problem with “–” character
I came across a Lucene index that indexes words with "–" characters It applies to some words that contain "–" but not …… -
Create variable names using loops in Java?
The first poster, long time readers, so be gentle to me:) Refer to the following code, which is used to generate time …… -
How to use Java driver to execute full-text search commands in mongodb?
Mongo and Java masters Our team decided to use the full-text search API recently introduced in mongodb However, we fin…… -
Handling Unicode proxy values in Java strings
Consider the following codes: byte aBytes[] = { (byte)0xff,0x01,(byte)0xd9,(byte)0x65,(byte)0x03,(byte)0x04,(byte)0x05…… -
Java – selenium does not detect the second window in ie
My application opens a new button - click window where I need to do something However, selenium webdriver's response t…… -
Java – Android: a simple GridView that displays text in the grid
I followed this example in the Android tutorial on GridView, but I want to use textview to simply display some text in…… -
Java – mongodb is obviously too big for a 16MB hat
I have a mongodb series Simply put, it has two columns: user and URL It has 39274590 lines The key to this table is {u…… -
When a java program suddenly exits, can you perform some operations?
If the program exits suddenly or there are any exceptions, I need to log For example, when someone presses Ctrl C whil…… -
Java – do you know what this error means in SVN?
Send example java I try to restore my changes and then even add only one additional character, and I'll see this error…… -
Use the latest JRE instead of the old java version. Can I guarantee that it will work?
Suppose I have a java project encoded in Java 1.5. I use a newer version of Java, but set the target to 1.5 If the cod…… -
Cost per class in a Java application – fewer large classes or several smaller classes
What is the memory cost for each new class added to a Java application? >Is it better to have 5000 large lines or s…… -
Java – JSON and Moshi formatting
Does anyone know how to make Moshi generate multiline JSON with indentation (for human use in the context of config. J…… -
Java – why do I get a non convertible type error?
If I use this class: public class BooleanTest { public static void main(String args[]) { final Object[] ob…… -
Java – class #getdeclaredmethods () returns inherited methods
See English answers > getdeclaraedmethods() being differently in Java 7 vs. Java 81 interface A { A setX(Object…… -
Java – replace substrings of matching regular expressions
I get some HTML and do some string manipulation and use similar strings string sample = "\n \n 2 \n \n \ndl…… -
Java – locationclient getlastlocation() returns null
I'm new to Android programming and want to start by creating a very basic application that displays the latitude and l…… -
Java – how to create packages (folders) in eclipse projects through plug-ins
I try to develop a small plug-in for eclipse and create several java files in several folders (packages) as the starti…… -
Description of volatile variables in Java documents
Here http://docs.oracle.com/javase/tutorial/essential/concurrency/atomic.html mention Can anyone provide an example? T…… -
Java – why are short primitive types significantly slower than long or int?
I try to optimize the RAM usage of Android games by changing the int primitive to short Before I did this, I was inter…… -
Java – Dbunit does not clean up and insert the database after each method, so the test is not independent
I have a Dao class test. I use Dbunit to create and populate the database (using Derby in memory) This is the code (Te…… -
Java – Android – why is using interfaces considered a best practice for communicating between activities and fragments?
In this document "communicating with other fragments", Google tells us that the best practice for transmitting activit…… -
Java – project setup using eclipse and mercurial
I'd like to make some suggestions on using eclipse to set up multi - Project workspaces In other words, I'm going to c…… -
Java EE – ejbclient0000025: no EJB sink to process?
I tried to connect from an executable Java application (not on JBoss locally) to a remote EJB on JBoss 7.2 locally How…… -
Java – how to create an ArrayList correctly?
See English answers > type list vs type ArrayList in java15 List<String/*or other object*/> arrList = new Arr…… -
Java – gridbaglayout: how to prevent invisible components from crashing
When making the components of the layout managed by gridbaglayout invisible, the arrangement of other components in th…… -
Java – how to make NetBeans start faster NetBeans took a lot of time to open
I don't know if it's just my computer, but NetBeans is spending a lot of time turning it on I wonder what I can do to …… -
Java – an elegant way to use flatmap in flatingby
So I have a piece of code. I'm iterating over a data list Each is a reportdata, which contains a case with long caseid……