包含标签：Java 的文章
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Java – how do I get type values from genericrecord?
I'm using Avro. I have a genericrecord I want to extract ClientID, devicename, holder In Avro schema, ClientID is inte…… -
Java – exclude Tomcat dependencies from spring boot in gradle
I'm using @ L_ 419_ 0 @ boot and jetty, I can't seem to exclude all Tomcat dependencies in the gradle build file build…… -
How do I identify and fill the contours I shape in javacv?
I'm developing a project on javacv. I need to know how to recognize the following image and fill it with specific colo…… -
java – GWT. Delete anchor part URL
Hi, I'm using GWT and its standard way to support history through the history course It's very convenient, but how to …… -
Java – read barcode when program has no focus?
I want to write a simple program to read bar code, write down bar code and scanning time Unfortunately, I can't guaran…… -
How to quickly search for strings in large files in Java?
I'm trying to search a large text file (400MB) for a specific string using the following: File file = new File("fileNa…… -
java – Arrays. The fill() method caused an exception
Now I can't fill the array with spaces Whenever I use the array fill method, I encounter exceptions Now I've eliminate…… -
Java – JSF custom converter without calling null value
I'm outputting Java math. BigDecimal creates a custom converter When BigDecimal is 0.00 or null, I want to output dash…… -
Java garbage collection in the dialog box
*When I try to create a button in JFrame, I now encounter a very strange Java GC problem. When I click the button, it …… -
Java – log4j configuration file error detection
I am writing a recorder using log4j Once I load log4j Properties or log4j XML file, I wonder if there is a way to chec…… -
Java – there is no setter method in the interface
I have a concrete class a that implements interface B B ref = new A(); code: public interface B{ public abstract Str…… -
Java – completing an activity from another class
I'm developing an application that requires a permanent Internet connection If there is no Internet connection, I want…… -
How to convert float to double in Java?
See English answers > why converting from float to double changes the value? 9 public class DataTypes { static…… -
Java JDBC：Reply. fill()
I sometimes get the following exceptions: The problem is that the code executes successfully for a period of time, and…… -
Transform “Java. Net. Protocolexception: unexpected status line”, anyone?
My Android application crashed the following stack trace, but it worked well when I tried it from the desktop rest cli…… -
Make these balls bounce through Java collection iteration, any tips?
If the problem is not clear, but I can't think of another way to express it, I apologize This is my homework for worki…… -
Java – nonlocking IO vs blocking IO raw data throughput
There is a statement in Apache httpcomponent document: Really? Can anyone explain it in more detail? What is a typical…… -
Java – iterates the bits of char
Suppose I have a char "C" whose ASCII code is 0110 0111 How do I iterate its bits? I want to build a vector from these…… -
Java class with many types of ArrayList
I'm new to Android and Android Java and have questions about my server application communication My server always retu…… -
What does syso statement mean in Java?
What does the syso statement represent in Java? Solution System. out. Short for println(); In eclipse, you can type sy…… -
Try catch performance Java
How long (in nanoseconds) does it take to try catch exceptions instead of checking (assuming that the message has Hash…… -
Go to global variables that are not covered by goroutines
I write CMS in go and have session type (user ID, page content to be rendered, etc.) Ideally, I want this type to be a…… -
Automatically compare Java analysis results of a single unit test
I want to run a single unit test and collect its "analysis" information: the frequency of each method call, how many i…… -
Java – does anyone know any collection of sprites?
I'm making 2D java games I hope the game looks good, so I need good sprites, but I want to focus on the coding of the …… -
Java – installs applications that have no icons or activities
I talked to my friend and he told me that some applications can be installed on Android without any activities or icon…… -
General architecture of data processing system running in Java for a long time?
I was asked to port legacy data processing applications to Java The current version of the system consists of nubmer o…… -
Side effect free methods in Java standard library
I'm working on Java programs that need information about the side effects of method calls For standard library classes…… -
Can ORM ODB for C generate code from the database
I am very new to this library, and it is usually orm I know that tools like entityframework can generate code from dat…… -
Java – in a single web Adding multiple servlets to XML
I tried on a web Two servlet classes run in XML, but it doesn't work. Each servlet class works independently web. In X…… -
Java – spring MVC controller and exception handling
I'd like to ask a best practice question about spring MVC controller Please check the following code: @ h_ 403_ 2@@Aut…… -
Asynchronous e-mail processing in Java Web Applications
When a user registers for a new account, I want to implement asynchronous email sending in my web application This mea…… -
Java – Maven 2 does not run JUnit 4 test
I'm having trouble running junit4 tests In https://stackoverflow.com/questions/2021771?sort=newest#sort -The same prob……