包含标签：Java 的文章
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Java – how to detect that a new value has been added to the enumeration and is not processed in the switch
From time to time, I want to add a new value to the enumeration type of the project public enum Day { SUNDAY,MONDAY,…… -
Java – enumeration with getter
Can enumerations use vendors to store references to getter methods? Use this: String value = myEnum.getValue(object) I…… -
Enhanced for loop cannot assign values to arrays (Java)
See the English answer > why Java foreach doesn't change element value? 7 int[] array = new int[5]; for(int i =…… -
Java – how to escape a string to be passed to decimalformat
Can I know how to escape a string to decimal format? // currencySymbolPrefix can be any string. NumberFormat numberFor…… -
Java – why do we call acceptor Accept() instead of visitor Visit() to start visitor?
In Wikipedia sample and GOF books, the use of visitor mode is initiated by calling the accept method on a recipient Bu…… -
How do I reference a class type whose interface is implemented in Java?
I encountered an interface problem in a program I want to create an interface that has a method that receives / return…… -
Java – allows users to enter only positive integers (no decimals or strings)?
I know how to ask users to enter positive integers, but I don't know how to handle code to avoid input errors, such as…… -
Java – why can’t static and default interface methods be synchronized but can be strictfp?
See English answers > what is the reason why "synchronized" is not allowed in Java 8 interface methods? 1 People sa…… -
Advanced array sorting / rearranging in Java
So I have an array with the following theoretical values: int[] elements = {A1,A2,B1,B2,A3,A4,B3,B4,C1,C2,D1,D2,C3,C4,…… -
Java – some absolute methods on ByteBuffer are missing
Maybe I will solve this problem in the wrong way, but I lack some absolute put methods on ByteBuffer If you look at By…… -
The PowerShell process hangs when invoked from a Java application
I'm trying to write a simple application that accepts command line arguments (which will be a power shell PS1 file) an…… -
Rest – authentication / authorization in jax-rs using interceptors and injection
I am using wildfly 8 to develop a new application in Java EE 7 I am using Jax - rs to provide a restful service interf…… -
Javadoc for private methods (BlueJ)
I'm using BlueJ and I want to generate Javadoc for the whole project Solution This link indicates that BlueJ will only…… -
Java – you cannot publish anything on LinkedIn using linkedin-j
First of all, my problem is that I can't post any web updates, share or ID invitations I always get the following exce…… -
Java – is there a lightweight markup language library for Android?
Suppose I want to render / render text transmitted in some lightweight markup language Are there any existing Android …… -
Java gets the exception name only if there is no stacktrace
How do I get the exception name without getting the stack trace? I'm using exception Tostring() converts the thrown ex…… -
Java – how does JCA / JCE and pkcs#11 work together?
I want to use HSM (hardware security module) to create an XML file signature I've done some research, but now I'm a li…… -
How to solve module info in jdk9 / java-9 Java compilation error
I tried to run under code using jdk-9, but I encountered a problem compiling with the command command javac -d mods .\…… -
Why doesn’t Java 9 simply convert all jars on the classpath to automatic modules?
To understand our categories: >Platform explicit module > Application explicit module > open module > auto…… -
Round Java float parseFloat
Given the following code, I want it to return "float = 32000.0001" Instead, it returns "float = 32000.0" System.out.pr…… -
How does Java initialize the JAXB / Jax WS / etc implementation?
I just want to know how Java includes standard reference implementations (such as JAXB / jax-ws in jre6) in JRE, while…… -
Java – why is this code applicable to this TopCoder problem?
I've been trying to think about this TopCoder problem from hours, and I can't find a perfect solution, and I find that…… -
Java – is it safe to share exception instances
We are making a system similar to excel When we open the document and find an unsupported function, we throw an except…… -
Java – how to understand OUTOFMEMORY or stackoverflow errors in advance
In Java, is there any way to know that stackoverflow errors or OUTOFMEMORY exceptions may occur soon? If a can program…… -
Java – static import method overlap
If you have a static import to Java Lang. integer, and my class also has a static method parseInt (string). Which meth…… -
Java – batch decompression GZ file
I have 100 GZ file, I need to unzip it a) I use http://www.roseindia.net/java/beginners/JavaUncompress.shtml The given…… -
Java – how to convert file delimiters in maven
I have an attribute defined as follows: <properties> <main.basedir>${project.parent.basedir}</main.…… -
Java vs JavaFX Script vs FXML. What better way to program JavaFX?
I'm a novice in JavaFX. I met 2-3 ways to design UI in JavaFX >Simple java file, the same as the method we use in s…… -
Java – grizzly Jersey listens only on localhost
I'm using jersey with an embedded grizzly version. I just want to bind / listen on localhost I am creating a threadsel…… -
Follow the JavaFX MySQL connection example
Anyone can give me an example of a class connecting JavaFX and mysql. I don't want the main class. There is one. I jus…… -
Java – what is the best way to count and sort string arrays?
I try to find out whether there is a good search method (counting the number of occurrences), and then sort a string a……