包含标签：Java 的文章
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Java – returns a string from JMS
I'm writing an independent main method that calls a producer (pushing data into a queue) and then calls a consumer who…… -
Array – the goal of combining LinkedList with string reverse is to understand LinkedList
I tried to use a link list program to display the reverse string entered by the user Here is my program to reverse the…… -
Java – use Apache POI to read the contents of the drop-down list from excel
I need to create a drop-down list (data validation) on a specific cell in the excel worksheet and read it back With th…… -
ORM – non destructively delete entities in symfony2
Is there a good, clean and simple way to delete entities non destructively in symfony 2? I want the administrator to h…… -
How to monitor available memory (including cache and cache) in Java?
I have searched for possible solutions, such as how to monitor the computer's CPU, memory, and disk usage in Java But …… -
Java – how do I associate a string with each member of an enumeration?
Suppose I have some enumerations as follows: enum Towns { Rome,Napoli,Modena } I want to associate a string with each …… -
Java – can I double or BigDecimal overflow?
Java 8 gave us math Addexact() is an integer, but not a decimal Can double and BigDecimal overflow? According to doubl…… -
Java process memory grows infinitely Memory leak?
We have a java process running on Solaris 10, serving about 200-300 concurrent users Administrators have reported that…… -
Java – publish AAR files to Maven central, gradle does not work
Publishing a file to Maven central and gradle still doesn't work: OK, let's restate all the steps I follow and try to …… -
Java – how to use Apache POI to select and bold the entire worksheet
I am a beginner of Apache POI library In VBA, I know I can use the following code to select and bold the entire worksh…… -
Java method call performance
I have this code to do range minimum query When t = 100000, I and j always change in each input line, and its executio…… -
Will JavaFX 8 implement text field validation support?
JavaFX 2 does not provide validation support (mask, input filtering, etc.) It is difficult to adopt technologies that …… -
Java – add API baselines in eclipse
Compiling the eclipse source library I tried to add API baseline, but I don't know how to add it or add it What are AP…… -
Opencv enumeration variables (such as cv_bgr2gray or cv_aa) are missing from recent Java APIs?
I set up a java project in eclipse to detect faces and eyes in images Solution CV_ Bgr2gray shall be defined as imgpro…… -
Java – multiple DEX file definitions / buildconfig, unable to find reason:
I am using the new graduate building system and I am facing the following problems: UNEXPECTED TOP-LEVEL EXCEPTION: co…… -
Java – is there any way to force Maven to copy changes to the resource folder?
I use Maven 2.2 1 and M2 eclipse I have two resource folders When I save changes to any file in any resource folder, M…… -
Java – the best way to create child objects from parent objects [copy]
See the English answer > java: creating a subclass object from a parent object 10 public class Child extends Person…… -
Java / Python communication via message broker
What is a good solution for communicating through a message broker that supports (c) Python and Java / JMS application…… -
Java – eclipse war export: optimized for a specific server runtime
In eclipse, this option is available when exporting a web project to a war / ear file What happens under the hood when…… -
How to store Java types and allow only some specific types?
Suppose I want to have a class descriptor for records, where each record has a set of properties Each attribute has a …… -
Undiluted date, with additional numbers in Java
What's wrong with this code? I try to parse the date format between months and months import java.text.SimpleDateForma…… -
Severe: Java class not found util. Message body writer for ArrayList and mime media types application / JSON
I'm testing the restful service. When I execute, I get an exception. Although there are the following jars in my class…… -
Java – generics and CompareTo () methods
I'm trying to create a skiplist. I have a method using common data types: public void add(E key,Integer value) { N…… -
Java – why does jmh run different forks?
I use the jmh benchmark framework（ http://openjdk.java.net/projects/code-tools/jmh/ ）Run the benchmark on my code My…… -
Java – how to use POI to set the author name as an excel file
I am using poi (Java) to create an excel (. Xlsx) file After I created the excel file, I saw the excel file as "Apache…… -
Java executorservice pauses / resumes a specific thread
Is there any way to use executorservice to pause / resume a specific thread? private static ExecutorService threadpool…… -
Java – why are we in JSP instead of system out. Write out in println() println()？
I started learning JSP. I saw that if we want to print something in JSP, we must write out Println () instead of syste…… -
Java – recursive BeanUtils describe()
Is there a version of BeanUtils Describe (customer) recursively calls the describe () method to the complex attribute …… -
Java – how to get the line number of a method?
Can I get the line number of using reflection or other magic methods? Solution I want to do the same thing. After some…… -
Research on Java – neo4j database
I recently began to study the database function of the database Unfortunately, I can't find every bit of information I…… -
Multithreading – multithreaded signal processing
>In UNIX, if a multithreaded process sends a signal, which thread will be the thread executing the processing funct…… -
Java – performance degradation after moving to Jersey 2
We are using spring 4, embedded dock 9 and Sweatshirt servers Recently we moved to Jersey 2.13 and we found that the p……