包含标签：Java 的文章
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Java – query the usage of this variable in recursion
After calling the method, node.nth(5) In the following code, public class List_Node { int item; List_Node next…… -
Java – NFC and NFC tools to create nDef applications
I tried to do what I would guess would be simple, but it turned out not to be I have an acr122 NFC reader and a bunch …… -
Java – prevent duplicate activities
So I'm both a novice in Java and creating Android applications, but not a novice in programming I've read most of deve…… -
Java – is it possible to define a Jax RS service interface separate from its implementation (using eclipse and Jersey)?
I don't know if the title is confusing, but let's say I have this interface: @Produces(MediaType.APPLICATION_JSON) @Pa…… -
Java – Jackson renames the original Boolean field by deleting ‘is’
This may be repeated But I couldn't find a solution I have a class public class MyResponse implements Serializable { …… -
Java – the easiest way to check whether a string consists of unique characters?
If a word consists of unique letters (case insensitive), I need to check Java Because the direct solution is boring, I…… -
Java – authenticate Active Directory via Kerberos
I'm building an Android application that requires different levels of authentication. I want to use active directory t…… -
Java – objects referenced by reference – references by value
I read this comment here: passing a string by reference in Java? Someone can explain that a new programmer can grasp w…… -
Java – exception: zlib input stream ended unexpectedly
There is a problem with gzipinputstream or gzipoutputstream Read the following code (or run it to see what happens): d…… -
Java – spring data rest: the repositoryeventhandler method was not called
I tried to add a repository EventHandler to the rest repository as follows: @RepositoryRestResource(collectionResource…… -
Java – the opposite of “isassignablefrom” for class objects?
Given a class object, how to check whether one of the "ancestors" belongs to a class? Solution Given a Class C1, do yo…… -
Java – the easiest way to check whether a string consists of unique characters?
If a word consists of unique letters (case insensitive), I need to check Java Because the direct solution is boring, I…… -
Multithreading – are semaphore P and V operations atomic?
Are the P () and V () operations that can be performed on semaphores atomic? Can semaphores prevent two processes from…… -
These java files are in scala What is the purpose in runtime?
In scala In the runtime directory, there are some * in the scala source tree Java file Those files seem simple, G. dou…… -
Java keylistener stutters
I make a very simple table tennis game in Java. I'm using keylistener to do this I want it, so when the user presses t…… -
Java – shift bit operator, shift by negative number
I encountered an interesting situation when using the bitwise shift operator If the second operand is negative, how do…… -
Java – onpagefinished cannot be triggered correctly when rendering web pages
For some reason, onpagefinished is triggering before WebView loading is complete - I can't figure out why public class…… -
Java – how to disable automatic updates in Hibernate / JPA
Can I stop hibernate from automatically updating persistent objects? @Transactional public ResultTO updateRecord(R…… -
Java – JBoss as 7 cannot inject resource using @ persistencecontext_ Local container managed entitymanagers
I am using JBoss as 7.1 1, and you can configure a new JTA data source and connect it to my EJB @PersistenceContext(un…… -
Why doesn’t Java allow static methods to be hidden through instance methods?
As http://docs.oracle.com/javase/tutorial/java/IandI/override.html As shown in, Java allows >Override instance meth…… -
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…… -
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…… -
Java – can I force the elimination of what rhinoceros calls overloading?
Perform the following tests: public static class Scripted { public void setThing(List<?> list) { Sys…… -
Java – why does “MVN assembly: single” use only assemblies to create a fat jar instead of my code?
I have a maven project created with spring roo When I run MVN assembly: single, I get a fat jar containing all the dep…… -
Does it make sense to use a simple framework for Java Web applications?
I have done a lot of Java Web development using JSPS and servlets, and I find this method direct and flexible Some of …… -
Java – should the main method copy input parameters?
One can imagine this Code: public static void main(final String[] args) { // do something } It should be public sta…… -
Was the formatting syntax of simpledateformat invented by Java?
Is the syntax of the date time format string defined by the simpledateformat class of Java (such as "EEE, mmm D", "YY"……