Recent Posts
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How can I use Java util. Calendar returns to the Islamic calendar?
I know Java util. The calendar class method getInstance () returns a Gregorian calendar, but how can I get an Islamic …… -
Java – symbol class intent not found
I am a novice in Android development and Java and XML coding But I'm learning this tutorial: http://www.steventrigg.co…… -
Assembly – do you have to pop an error code pushed onto the stack by some exceptions before returning from the interrupt handler?
I have loaded an IDT table with 256 entries, all of which point to similar handlers: >Push exception numbers for ex…… -
Java – Maven version cannot be changed in the eclipse ide
There was no MVN package inside eclipse, but after success in the terminal, I realized that eclipse was running Maven …… -
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JavaFX changelistener is not always valid
I have a JavaFX application and have a concurrent task there Because the binding does not append new text to the texta…… -
Java – a regular expression used to split a German address into its parts
Good evening, I tried to split the parts of the German address string into its parts through Java Does anyone know reg…… -
Logical operations on Java enumerations
I have a project where I have to deal with different subsets of large data sets in different scenarios The way I write…… -
Java generics
I want to implement a method that takes object as a parameter, converts it to any type, and returns NULL if it fails T…… -
Java – psqlexception: error: syntax error at or near
I think JPA is a direct relationship It looks like this CompanyGroup： @Entity @Table public class CompanyGroup implem…… -
Java – cannot set the request character encoding to UTF-8 from the context
See English answers > Unicode input retrieved via primefaces input components become corrupt 1 <?xml version='1.…… -
Java – Solr filter cache (fastlrucache) occupies too much memory and leads to insufficient memory?
I have a Solr setting One master server and two slave servers are used for replication We have about 70 million docume…… -
Java – WebSockets 403 Forbidden on HTTPS
I am currently trying to set up HTTPS in the spring boot 1.2 application This application uses a large number of WebSo…… -
Java – variable path parameter for rest Service Testing in JMeter
I'm testing a rest service with path parameters /my-service/v1/Customer/order/{ordernumber} I want to increase the num…… -
Java – spark structured streaming automatically converts timestamps to local time
I have UTC and ISO 8601 timestamps, but using structured streams, it will be automatically converted to local time Is …… -
Java – convert resultset to string array
I need to convert my result set to a string array I'm reading email addresses from the database, and I need to be able…… -
Java – joda time: get the first / second / last Sunday of the month
In normal Java, I have this code to get the last Sunday of this month Calendar getNthOfMonth(int n,int day_of_week,int…… -
Using small (1-10 items) instance level collections in Java
When creating classes in Java, I often find that the instance level collection I create is very small - there are less…… -
Java – print a string from ArrayList of string []?
I have an ArrayList of a complete string array. I build it as follows: String[] words = new String[tokens.length]; My …… -
Java – parse byte array containing unknown length field
I parse a byte array with the following specifications in Java: Trace data format: - 4 bytes containing the Id. …… -
Java – find non-public elements between two arrays
In an interview, people were asked to find unusual elements between two string arrays Eg: String a[]={"a","b","c","d"}…… -
Modifying private instance variables in Java
See English answers > java private field visibility6 public class Account { private String name; private do…… -
Java – JPA criteriabuilder upper gives a compilation error
I am trying to use criteriabuilder for case insensitive queries, as described in Hibernate JPA criteriabuilder ignore …… -
Is there any way to focus on JavaFX?
I know you can execute node Requestfocus() to focus on nodes in JavaFX But is there any way to remove focus from nodes…… -
Java – Kerberos for thrift?
I have a simple java application based on thrift This is very simple, just using thrift's "Hello world" message transm…… -
Best practices for Java exception handling
I recently wrote the following code; It uses a lot of exception handling I think it makes the code look very difficult…… -
Indexof() has a strange Java. String with a duplicate string util. List behavior
I've just encountered some strange behavior. I don't expect from ArrayList < string > in Java Of course, this is…… -
ORM – doctrine problem: unable to get the last insert identifier
When I try to save data to my model, doctrine throws this exception: Message: Couldn't get last insert identifier. My …… -
Java – Eclipse Helios: Tomcat project – jar will not be exported or published Runtime may cause classnotfoundexceptions
I'm using eclipse Helios. I want to know how to add the library project to my folder, which will be copied to the buil…… -
Java – connect to Derby database with Tomcat as server
How do I connect to the Derby database (included with NetBeans)? I use Tomcat as the server Before, I used the followi…… -
Java – UTF-8 encoding; Only some Japanese characters have not been converted
I get the parameter value from Jersey web service as the parameter. The service is Japanese character Here, 'Japanese ……