包含标签：Java 的文章
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Java – spring MVC and Hibernate cannot obtain the session of transaction synchronization for the current thread
I have a spring application that works with hibernate Hibernate session is not created Throw an error as shown below &…… -
Java – why is map conversion so narrow?
I know the difference between narrow transform and wide transform of RDD My question is which parameters can prove tha…… -
Java 8: are longadder and longaccumulator the first choice for atomiclong?
Longadder as a substitute for atomiclong ExecutorService executor = Executors.newFixedThreadPool(2); IntStream.ran…… -
Java – case insensitive string What is an alternative to the contains method?
See English answers > how to check if a string contains another string in a case insensitive manner in Java? 17 If …… -
How to get each number separately by numbers (floating point numbers) and using int Java
Is there a good way to search the first four numbers of a floating-point number and return each number separately with…… -
Java equivalent Delphi language features
See English answer > equivalent of c# anonymous methods in Java? 6 I see from the Java language specification that …… -
Java / spring application cannot start on cloudfoundry: outofmemoryerror compresses class space
After deploying the new version of Java / spring boot software to the Swisscom developer cloud running on the cloud fo…… -
JavaFX: how to create a scrollpane pan only on the middle key?
When panning is allowed, the scrollpane pane of JavaFX displays all mouse events: scrollPane.setPannable(true); How ca…… -
Java – Tomcat permission denied when trying to write to a file
I'd like to send a zip through the Tomcat server But when I try to visit http://localhost:8094/fetna -At project rest …… -
Java – unlimited when trying catch
I encountered a problem when I tried to execute a try catch statement in a loop I ask the user to input letters first …… -
Java moves left and fills zeros
I want to move left, but fill in zero, just like int number = 20 >>> 10 = ( 0000 0000 0000 0000 0000 0000 000…… -
Java – unable to parse the import org. Org springframework. test. context. junit4. SpringRunner
I'm trying to solve this problem from now on But I still haven't solved it I just got out of spring IO downloads a spr…… -
Unit test – unit test vertx – Java util. concurrent. TimeoutException
I'm trying to test HTTP calls from the vertx webclient unit using the rxified version of vertxunitrunner and vertx The…… -
Java – the difference between string, string builders, character arrays and ArrayList
Strings are immutable String builders are not, so you can add characters at the end String is a character array. If I'…… -
Java – adds multiple bigdecimals to a map
I tried to aggregate multiple bigdecimals from the list At present, I am using two streams, but if possible, I want on…… -
Java – insert spaces after commas, periods, and other punctuation marks
In Java, the best way to fix missing spaces after some punctuation is: ,. ; : ? ! For example: String example = "This …… -
Java – after successful matching, continue to match the scala switch of the next case
How to execute another case block after executing one case block in a Scala switch statement (in Java: no interruption…… -
Find the maximum product of negative numbers in Java
I'm taking a semi - advanced course in Java I taught myself JavaScript as a hobby, so I'm not a real beginner, but I'm…… -
Java – unexpected tags in kotlin (use; separate expressions on the same line)
I use kotlin in my android project, which is developed on Java. I use kotlin data classes in the service layer Now I w…… -
Java-8 – sum and max values in a single iteration
I have a list of custom callrecord objects public class CallRecord { private String callId; private String aN…… -
Java – how to calculate the length of multiple strings
I have a string like this: Hey, my name is $name $; I'm over $years old. I like playing $sport $. I live in $country $…… -
Java 8: merge 2 string lists into the map
See English answers > clearest way to combine two lists into a map (Java)? 15 List<String> keys List<Strin…… -
Java – mulestudio Studio: Studio target failed to execute
I copied / pasted a work project in the mule studio workspace (from mule studio) to create a new project After that, I…… -
Java – regular expressions that begin with an underscore but do not contain any underscores
I try to get the name of the file from the last underscore until the end For example, ABC_ AA. XML should be ABC and A…… -
Java – Maven: exclude the “meta-inf / Maven” folder from the jar
I use Maven to build jars When I checked the jar, I saw a maven folder in the meta - inf folder I want it to be exclud…… -
How to wrap Java util. Iterator to change the type of the object being iterated
I'm providing some appearance classes for third-party APIs. I need to wrap an iterator so that I can replace things it…… -
Java – method of overriding with different parameters
Suppose I have a parent class: class Parent{ public void aMethod() { //Some stuff } } It is a children…… -
Java – does the HTTP protocol version “http / 1.1” contain HTTPS?
I don't actually see this problem, perhaps because it is so basic I am using java Apache httpcomponent and check the r…… -
Understanding Java executorservice
I'm trying to learn how to use Java's executorservice, I am reading the following discussion java thread simple queue …… -
Haskell pattern matching vector
I'm following an online tutorial on Haskell We define a function to add a two-dimensional vector, represented by tuple…… -
Java – getters for display
I'm studying getters / incubators. The general idea is that they are evil and should be avoided You should let the obj…… -
RX Java – how to explicitly unsubscribe observable after oncomplete
In the following code, how and where does unsubscribe explicitly unsubscribe observable after completing oncomplete? g……