包含标签：Java 的文章
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Java – a good programming practice for static initialization?
In Java, we use static initialization blocks: private static final ApiKey API_KEY; static { API_KEY = new ApiKey(…… -
Java – face detection is not applicable to front camera
So basically I have this code, if(mCamera.getParameters().getMaxNumDetectedFaces()==0) { System.ou…… -
Quicksort algorithm program in Java
I'm trying to implement the Quicksort algorithm program in Java, but I got the wrong answer public class QuickSort { …… -
Java – why use two different algorithms for sorting?
In the arrays class, quick sort is used for sorting primitives, but for sorting objects, it is merge sort I wonder why…… -
Java – layout preview rendering problem: porterduff color filter is not supported
After creating the navigation drawer activity in Android studio 1.4, the IDE will automatically generate some XML file…… -
Java – provides two different class instances of the same hashcode
I encountered a strange problem on the JBoss server, where two classes generated the same hashcode () Class<?> c…… -
Java – execute the jar command to exclude files
I followed the Java archive tool, but I couldn't find how to exclude folders For example, I have files in the working …… -
java – Weblogic 10.3. 1.0 is using COM bea. core. apache. commons. net_ 1.0. 0.0_ 1-4-1. Jar… I want to use commons-net-2.0 Jar from my code
Weblogic 10.3. 1.0 is using COM bea. core. apache. commons. net_ 1.0. 0.0_ 1-4-1. Jar... I want to use commons-net-2.0…… -
Java – where and how are exceptions used?
I'm reading about exception handling in Java so that I can write better code OK, I admit I'm guilty. I used too many t…… -
Java – clean up jetty – delete ‘unnecessary things’
I'm used to using jetty as my web container What I did in the installation step was to get the original tar ball and c…… -
Java – using requestbuilder to process attachments in GWT
I am sending an HTTP post request from GWT client to HTTP servlet The servlet is creating a PDF file from the request …… -
Why does Java 8 apply different annotations to derived classes?
If I have the following two classes: // Base.java public abstract class Base<T> { abstract void method(T t); }…… -
Java – spring data rest adds inheritance issues
I have a spring database on a JPA entity The entity is subclassed through connection inheritance At least automaticall…… -
Java – HTTP get: Download header files only? (not supported by head)
In my code, I use some HTTP get requests to download some files as streams I use the following code: public String get…… -
How to convert months into months in Java
My new Java and I want to convert for months to years For example, if I have 18 months and divide it into 12, I will h…… -
Java – how to reload properties using spring?
I am using the properties file of spring 3 I want to have a possibility to update some properties in the file and expo…… -
Java – exception handling mode
See a common pattern where the error code associated with the exception is stored as a static final int When an except…… -
Java – self executing anonymous functions via Lambdas
In JavaScript, there is a common pattern of creating an anonymous function and calling it immediately (usually called …… -
Java – can’t inherit @ component in spring?
In my project, there is a common base class, and all client classes are extended There is an @ Autowired field, which …… -
Java – jdesktoppane preferred size set by content
I have been trying to tame jdesktoppane and use resizable GUI & scrolling pane, but I have some trouble doing so I…… -
Java – convert NetBeans projects to eclipse projects
I developed a very large Java application in NetBeans Now that I have the eclipse IDE, I want to migrate my project fr…… -
Java string internship, what is the guarantee?
The problem boils down to the following code: // setup String str1 = "some string"; String str2 = new String(str1); as…… -
Java – gradle: how to exclude some tests?
My Src / test / folder includes unit and function tests The classpath of functional test is cucumber, while unit test …… -
Java – should I synchronize on ReferenceQueue?
I was looking at the source code of weakhashmap and came across: private final ReferenceQueue<Object> queue = ne…… -
Java – how do overloaded methods work?
public class Test1 { public class Test1 { public static void main(String[] args) { Test1 test1 = new …… -
Java – application server maximum memory limit
How much memory can servers (JBoss, Tomcat, etc.) use? For example, if the server has 128GB of memory, can it use at l…… -
Java – how to reload properties using spring?
I am using the properties file of spring 3 I want to have a possibility to update some properties in the file and expo…… -
Java – listen for Ctrl C
Can I listen to Ctrl C when running groovy scripts from the command line? I have a script to create some files If I in…… -
Java – things to consider when building a framework
We are planning to build a framework: a cost estimation framework that will be used in all areas of our organization T…… -
Java – proper use of bonecp
I just started using bonecp and extracted JDBC code from the author's website I have a function called getconnection (…… -
Java – identify future time zone transitions
I need to predict that the next transition of at least 2 time zones will be a specific time zone Java 8 provides a new…… -
Why doesn’t Java convert int [] to integer []
When I do the following things, >Arraylist1 – contains an element that is an int []. > Arraylist2 – not compilin……