包含标签：Java 的文章
-
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…… -
How to prune out an integer array in Java?
My number is n. n will be the size of the array int numArray [] = new numArray[N]; However, the contents of the array …… -
Java – search for HashMap in the ArrayList of HashMap
I have an ArrayList of HashMap I want to search for HashMap in it, but I can't find a way to do this What do you sugge…… -
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…… -
Java – a good way to filter lists sorted by attribute and by date
I have very simple things to do. I have such a list of personnel: [{ name: John,date: 01-01-2018,attend: true },{ …… -
Implementing label bar in JavaFX
Demonstration answer: (3:10 a.m. on May 29) **10 / 7 / 2016 * * you can find the code in GitHub Answer to practical qu…… -
Java – performance overhead of AOP
I wonder if there are any major performance problems if AspectJ is used to intercept every (or most) method in the app……