包含标签：Java 的文章
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Looking for Java libraries that implement binary trees [closed]
Is there a Java library that can use binary trees? I don't expect to test and implement myself Solution The Java stand…… -
Add Java FX 2.0 to an existing NetBeans project
I have an existing Java project using swing in NetBeans, and I want to start using java FX 2.0 in some components of t…… -
Java – isn’t log4j thread safe after all?
(this is in sles11, Java 7, Tomcat 6, log4j-1.2.16) We use log4j to write different things to different log files I in…… -
Why does Erlang process creation and messaging take less time than Java and C#
I searched Erlang's process model on the Internet and found some chart slides 3-4 in a speech by Joe Armstrong They sh…… -
Java – how do I find and verify the encryption strength of the JDK security provider?
I have this applet that prints out all supported providers in my JDK installation, but I wonder if anyone knows how to…… -
Java – I can automatically execute JUnit test cases once when all logging is enabled and automatically execute after all logging is disabled
I have found a solution. Please refer to the answer below Does anyone have something more elegant? I think this is to …… -
Java – iso8601 using Jackson in JSON in milliseconds
import com.fasterxml.jackson.databind.util.ISO8601DateFormat; import com.fasterxml.jackson.databind.util.ISO8601DateFo…… -
Java – iterates over each possible double value
Consider the situation where you want to test each possible input value Creating a situation that iterates over all po…… -
Java – Android studio error: org gradle. process. internal. ExecException
I'm a novice in Android development, and I encountered my first mistake, which seems to be unsolvable I have downloade…… -
Multithreading – distributed computing and threading
How similar are distributed computing and threads? I found that two papers came to the opposite conclusion: "Multithre…… -
Java – Apache POI adds a series name to linechart
I am using Apache POI to create a linechart in an excel document As far as I can imagine, in the following figure: I w…… -
Java – change the color of the up arrow and mark it as a private warning
After defining a custom color for the backward arrow in the action bar, a warning is returned What can be done to get …… -
Java – white package icon in my eclipse package Explorer
I received these strange white package icons in the test project From what I see@ http://jamie.ideasasylum.com/images/…… -
JavaFX tableview edit that clicks and automatically inserts rows?
I use tableview in my program to display a few good lines Question 1: when a user wants to modify a value, he will dou…… -
Do you need a reference to the second value to sort tuple vectors?
I have a vector of integer tuples and want to sort them by the second element of each tuple: fn main() { let mut t…… -
Java – how to use JPA2 to persist entities containing user type fields
I'm looking for a way to persist entities that contain user type fields import org.joda.time.DateTime; @Entity public…… -
Java – monitor windows directory size
I'm looking for something that can monitor the size of the windows directory and the number of files I'm talking about…… -
Java – ehcache – uses list as the cache value
So this is the problem I'm trying to solve - I have an object with two integer fields, and I want to cache public clas…… -
The Java logger uses the… Function
See English answer > which of array creation vs string concatenation for logging method has better performance? 3 m…… -
Java – can I prefix each row of the stack trace in log4j?
When you write logger.error("message",exception); Log4j generates a message and a complete stack trace: Aug 9 06:26:1…… -
Java – Guice abstractmodule installation method
What does the method install () in the abstractmodule class do? Can anyone explain to me? From the documents I read fr…… -
Java – softreferences and weakreferences / outofmemoryerror
There was a problem processing soft and weak references The code has a flag that can be switched The code is a little …… -
Java – what is the difference between static and non static annotations?
Java's internal classes can be static or non - static A non - static inner class is associated with an instance of a c…… -
Java – the font name “classname” is inserted into mongodb by morphia
I just started using mongodb and morphia. I realized that there was an extra part in the mongodb file. The record cont…… -
Java – length in array and length () in string
When we talk about arrays and length (), why is the length of data fields when we talk about strings in Java? Means: i…… -
Java – Office add in development – malformed get URL (_host_info =…)
I am currently developing MS Word office addin using the JavaScript interface provided by Microsoft I used Django back…… -
Java – hikaripool-1 – driverclassname requires JDBC URL
I'll go back and program my old program https://github.com/JonkiPro/REST-Web-Services. I have updated spring boot from…… -
Just in time compilation – when does it actually happen in Java?
Recently, I participated in a discussion on Java efficiency The answer is that Java code is often compiled directly in…… -
How do I use Java regex to find all repeated character sequences in a string?
Use Java and regex to parse a random string to find repeated sequences Consider string: aaabbaaacccbb I want to find a…… -
Java – spring form without commandname [copy]
See English answer > what causes "java.lang.illegalstateexception: neither bindingresult nor plain target object fo…… -
Enhanced Java util. Cglib will throw illegalargumentexception when using the date class
I tried to use cglib to enhance Java util. Date. It's useless. I have no experience with cglib, so I want to know what……