包含标签:Java 的文章
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Java – why does jasperreports try to load org. Org springframework. core. io. Resource class?
Recently, we integrated Jasper reports into our enterprise applications Some of our users get Java. Com on the client …… -
Java – how to add metadata to PDF documents using pdfbox?
I have an input stream of PDF documents for me to use I want to add the topic metadata to the document and save it I d…… -
Java – spring stomp over websocket: message / buffer / cache / stream limit
I can't understand my different parameters in the websocket configuration for developing chat applications involving i…… -
Java – why can’t the final variable be used in a switch statement?
When I type the following code in eclipse, it complains that "case expressions must be constant expressions." If the a…… -
How can I avoid doing a lot of if in Java?
In C, I will use the mapping of int / pointer to implement such a function: @ h_ 404_ 7@ std::map = { {Code::Value1,Ha…… -
Java – streams: how maps in streams work
In order to better understand the map function in streams, I tried this: String inputString="1+3+5"; Stream.of(inputSt…… -
Java – Android studio does not parse classes written in kotlin (. KT) in the IDE, but compiles well
I started working on an existing project that uses standard Java and some classes of kotlin Question: These projects c…… -
Java 8 optional how to handle too many orelses
Let's look at an example without Lambdas: @H_ 502_ 8@ @H_ 502_ 8@ Credentials credentials = CredentialService.get(id);…… -
Java – Click to confirm the modal dialog with selenium webdriver
I have a modal dialog like this: I want to click OK to save this text So I use switchto switch to this dialog box: web…… -
Java – render Android support. design. widget. Coordinatorlayout problem
I upgraded Android studio to 2.2 Problems faced after 3 I tried to fix the build path, but it didn't work for me When …… -
Java spark streaming JSON parsing
I have started to learn spark flow from spark engine, and new data analysis and spark I just want to create a small IO…… -
Java – TestNG – @ aftermethod priority
Can the @ aftermethod method method be called in a specific order? public class PriorityTest { @BeforeClass(alwaysRun…… -
Java – how do I reverse the seekbar value?
I have the following code: int min = 1; int max = 255; seekBar.setMax(max - min); seekBar.setOnSeekBarchangelistener…… -
Accessing poloniex HTTP API using java
I tried to connect to poloniex com API https://poloniex.com/support/api/ , which says: But I always get {"error":"Inva…… -
BufferedReader in Java Does readline() put the entire file in memory?
Yes? Or maybe only a single string is placed on each readLine (), and the maximum memory space is the volume of the lo…… -
JavaFX drop-down button
How to create a "drop-down button" in JavaFX? So far, I'm using it Choice@R_206_2419 @, now I have to Choice@R_206_241…… -
Java – static nested subclasses of closed types can still reference private field members. Why?
I've found something vague. With all due respect Suppose we have the following class structure: public class A { p…… -
Java – place numbers on random points in a 2D array
I have a 2D array with 5 rows and 5 columns I want it to place a '1' character at 8 random points in the 2D array (mak…… -
Java – if value is empty, delete the key
Suppose we have a map < key, collection < value > > mymap and a method to delete values from the collectio…… -
JavaDocs throws illegalargumentexception
I am using IntelliJ idea. When I start generating JavaDocs (through tools - > generate Javadoc), I will throw an il…… -
Java – thymeleaf email template and conversionservice
I have a spring MVC application. I try to render a date localdate as a string. It works for normal views, but it doesn…… -
Change the scene in JavaFX without resizing the window
I'm trying to change the scene on JavaFX without changing the window size But when I set stage setScene(scene2); As th…… -
Java – spring rest simulation context path
I tried to set the context path for spring rest mocks using the following code snippet: private mockmvc mockmvc; @Bef…… -
Java – what class What does the forname () method do for JDBC?
See the English answer > what is the purpose of 'class forName(“MY_JDBC_DRIVER”)’? 4 Class.forName("com.MysqL.jdbc.…… -
Definition of constant field in Bloch’s effective java version 2
quote: I'm not sure what that means; Can anyone give an example? Solution An example Josh is talking about is list, wh…… -
Java: how to remove quotation marks from the JSON key using regular expressions
I need to remove double quotes (objects with sub objects and arrays in the hierarchy) from the complex JSON structure …… -
Java – set Proguard to confuse only my application packages
I tried to use Proguard for obfuscation, but got a third-party library error, so I excluded each package one by one: -…… -
Java – regular expressions extract specific strings
1X79 "The X-Files" (1.01) 9/10/93 1/17/94* 11/ 6/94* 1X79 "The X-Files" (1.01) 9/10/93 1/17/…… -
Adjust the size of the window dynamically in the JavaFX window to adjust the window size.
I have a task. I want to create four circles with four triangles inside, which is similar to a fan. I create a clock. …… -
Java – recursively tests whether the character array is a palindrome
I tried to find a solution, but all the solutions I found were strings What I want to do is check whether the characte…… -
Java – sockettimeoutexception when building ant in eclipse
I had problems building some of my ant scripts using eclipse (some built normally, others didn't) Basically, I'm at ec…… -
Java 8 stream reduces arbitrary class types
Well, it's not a homework question, it's a question of "I got the Java 8 program and hope to finally pass the certific……