包含标签：Java 的文章
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Java – eclipse – declare variables based on return or get (shortcut)
I don't know how to use this phrase in search, but if there is a shortcut in eclipse that allows us to declare a varia…… -
java. io. IOException: invalid keystore format
Who knows how to solve this problem? When I click on more details, I get this: at sun.security.provider.JavaKeyStore.e…… -
Java uses machines to send keystrokes to humans
I know that robot class can be used to send keystrokes in Java, but is there any way to specify the target process whe…… -
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……