Recent Posts
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Java – how do I access static members in a velocity template?
I don't know if there is a way to do this in velocity: I have a user POJO, an attribute called status. It looks like a…… -
How do I extend the test timeout in circleci?
I run some tests in circleci, some tests take longer, and then 10 minutes, because its UI tests run on headless browse…… -
How to create blob objects in Java?
1. How to create blob objects in Java? I have created a blob object byte [] fileId=b.toByteArray(); Blob blob=new …… -
Java – keep the dead line alive
In an interview with me, I raised the following questions (a few years ago) I have argued that there is no way But he …… -
Java – ant buildfile cannot put the jar file into the classpath when running other jar files
I'm new to ant build files. I've managed to build my build files to create my build directory structure, compile all m…… -
Extract from strings in Java
I have a string; String value = "(5+5) + ((5+8 + (85*4))+524)"; How to split / extract the logical value from this str…… -
Is there a map with variable key length in the Java world?
I need a map, but when I call get (key, n), it should not only return all records with search key values, but also ret…… -
Debugging – the most effective way to debug on a BlackBerry device?
I am looking for the fastest and most effective way to debug my java application BlackBerry I noticed that in my case,…… -
Nested enumeration in Java?
I want to define some enumerations for the various Ajax services provided in my web application, such as: Enum Service…… -
Java – validationexception: unable to find default provider
I found three entries in the stack overflow: javax. validation. ValidationException: Unable to find default provider j…… -
Java – how to disable echo when sending terminal commands using Apache commons net telnetclient
So, I have this class using org apache. commons. net. telnet. Telnetclient class It attempts to send a command and rea…… -
Java – can I statically import private subclasses?
I have a private enumeration. Don't expose it outside class Anyway, can I statically import this type so that I don't …… -
Java exception wrapping: bad practice?
From the PHP world, there is only one way to write exception handling I find the exception wrapper in java a little "u…… -
Java – wicket @ springbean cannot create bean
I have an eclipse, wicket, spring, hibernate project Everything is normal except when I try public class SortableConta…… -
What happens if you use deprecated methods / functions in Java?
Any problems with using deprecated features in Java? If so, why keep this function? Is it a bad habit to use disapprov…… -
Java – mention and reorder the same thing?
Read from effective Java. Without synchronization, the following sequence a can be converted to sequence B by the virt…… -
Java instanceof and class name
I just asked this curiously. Maybe it's meaningless When we use instanceof in Java, for example: if (a instanceof Pare…… -
cmd. exe powershell HashTable
Using CMD When exe is called, is there a method in the power shell that can pass hashtable as a parameter? I want to c…… -
Threads in Java threads?
I am currently considering how to design a multithreaded system in Java that needs a lot of network processing and dat…… -
Java – Android eclipse all spinner fonts turn white
In my project, all spinner fonts suddenly turn white, which is why I can't find it They were all black before For exam…… -
Java Basics: static functions without names or return types
public class Main { public class Main { public static final Logger LOGGER = Logger.getLogger(Main.class.getName())…… -
The best way to analyze the HTTP traffic sent by my java code?
I have some new Java code (using Apache commons HTTP Library) and old (strictly using java 1.4 API), and try to rewrit…… -
Java, static method binding and generics are all involved in some method overloading
So the title means that my question is a little strange and complex I know what I'm going to do to break all the rules…… -
Java – JBoss binding IP address
I need some help from someone who knows JBoss hostname binding I think the solution is simple, but it is complicated t…… -
Java – Maven dependency error in eclipse
I have a war artifact that I need to use some of their classes from the jar <plugin> <artifactId>maven…… -
How to use java to get user input in array?
How to get user input in array using Java? Solution This is a simple code to read strings from stdin, add them to list…… -
Java – Android Camera2 is too slow to capture bursts
I'm trying to modify the Android - Camera 2 basic code to capture a series of pictures However, running l 5.0 on my ne…… -
Java: how to ensure that interface methods don’t take more time than x?
I have an interface method Boolean right (). If it does not answer within one second, it should return false Solution …… -
Java byte array conversion problem
I have a string that contains a series of bits (such as "01100011") and some integers in the while loop For example: w…… -
Java – where are the private instance variables of the abstract class created in the heap?
abstract class A { abstract class A { private int a; public A(int x) { a = x; } public int get…… -
“Error: java_home is not defined correctly.” Building jikes RVM
When I built jikes RVM on Ubuntu, I received this error Any ideas? bin/buildit localhost production ---> Config: pr…… -
Java lambda expressions and logging
I'm reading the new features of log4j2, and there is a feature that can be enabled "Java 8 lambda supports lazy loggin……