Java
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Java – delete random index from ArrayList
I have a 4-item ArrayList I need to randomly delete an item and display the updated ArrayList However, my random numbe…… -
Java – Android view animation lifecycle
I would like to ask if the animation will be cancelled if the view is destroyed when the configuration changes I have …… -
Java – IntelliJ – coding style issues
Sorry for the wide range of questions, but how do I set IntelliJ to wrap long method calls as follows: The style of al…… -
How to format multiline tostring() using printf in Java
Therefore, for my beginner programming class, we must write a program focusing on inheritance. We can create and input…… -
Java – parsing soap services using retrofit I’m facing an exception (i.e. a mismatched body model in the class envelope model in the response)
This exception is encountered when parsing the response in soap services using retrofit Iam My exceptions are as follo…… -
Javax. In JDK 7u79 smartcardio. Card. Disconnect (Boolean reset) behavior?
According to the release notes of JRE 7u72: When calling javax smartcardio. Card. When disconnect (true), even if I ha…… -
Java – spring MVC form errors have not been processed on JSP
I'm trying to validate the login form After clicking the login button, the control enters my controller class. With th…… -
Java – dead code warning in try with resources, but not in try catch finally in translation
The following code uses the try - with - resources structure introduced in Java 8 Occasionally, the throw () method is…… -
Java – the calculator does not handle two operator equations
I am developing a calculator application and all functions have been turned off The only problem is that when I enter …… -
How to find an unknown duplicate substring in a string or table Coulmn
I have a large string of numbers as input to the program (I think the sequence name is's'). It can be a string or a ta…… -
How to convert telegraph API core date: int type to Java date?
See English answers > converting long to date in Java returns 1970 11 There is date: int, a ten digit integer with …… -
Java – spring security login 2fa – first check the user name and password, and then request 2fa code when needed
I have set 2fa spring safety The problem is that the 2fa code must now be entered in the same form as the user name / …… -
Basic Java algorithm assistance
I need help writing a program that gives a specified number of coordinate points in the form of (x, y) The score to be…… -
How to use arraymap in the code of JUnit (non institutional) Android unit test?
If an unchecked unit test (not subclassed from androidtestcase) calls code using arraymap, it will be in XX xx. The no…… -
Java – a separate execution queue for a single executor to track the remaining data
In my jetty service, I have an endpoint that triggers a large number of threads I am currently using threadexecutiorpo…… -
Java – how to implement video using connectionservice
I want to use the system application to realize video chat through connection service https://developer.android.com/re…… -
When using async driver for Java, not all documents are inserted into mongodb
I'm trying to use the mongodb async driver（ http://mongodb.github.io/mongo-java-driver/3.0/driver-async/ ）And notice…… -
Java – why does it always call the parent method “dotest (double D)”?
See English answers > polymer in overloaded and overridden methods 4 class PolymorphisomTest { class Base { …… -
Using robot JavaFX keyevents is delayed when movemouse()
I'm trying to write some kind of first person view 3D game in JavaFX, and the motion effect is good so far I'm using J…… -
Can fields of a Java class be of multiple types without using generics?
I have a class whose instances will be serialized Therefore, this class implements serializable This class has a field…… -
Java – how to merge two Android studio projects into one [copy]
See English answers > how to create jar for Android Library Project 8 Solution From combine Android projects togeth…… -
Javac for dynamic compilation does not work
I'm trying to compile a HelloWorld class as a test, which shows an error I don't know how to solve It seems that it is…… -
Java – preemptive authentication why
Why do I need preemptive authentication? System. setProperty(“httpclient.authentication.preemptive”,“true”); I wrote a…… -
Java – word boundary detection from text
I have this problem with word boundary recognition I deleted all the tags in the Wikipedia document, and now I want to…… -
Java – Canny edge detector for Android – recursive function on stackoverflow
I'm working on an augmented reality app for Android I'm implementing Tom gibara's Canny edge detector class and replac…… -
Java – jsession / httpsession and application generated session ID
In web applications based on proprietary MVC and authorization models, we recently migrated to spring MVC On the surfa…… -
In javax xml. Create a general collection in bind
In the rest server I write, I have several collection classes that contain a single item returned from my service: @Xm…… -
Java – event handler in Android – designer time automation and handling 2 views in a separate handler
I am a novice in eclipse (Indigo) and Android. I come from visual studio 2010 and C # >In VS, when I double-click a…… -
Java – how do I know the value associated with a deleted entry in the weakhashmap
I have such things: private Map<MyObj1,MyObj2> map = new WeakHashMap<MyObj1,MyObj2>(); ... somewhere in …… -
Asyncsocket in Java?
How to implement asyncsocket (Android specific) in Java? Solution If you want non blocking IO in Java instead of one o…… -
JAXB – suppress Javadoc
When I compile a JAXB schema, the generated classes are decorated with generic Javadoc annotations Solution Annotatio…… -
Java – large network iteration – parallelism?
I am writing an algorithm to measure the robustness of large networks under independent attacks The network has about ……