包含标签：Java 的文章
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Description of volatile variables in Java documents
Here http://docs.oracle.com/javase/tutorial/essential/concurrency/atomic.html mention Can anyone provide an example? T…… -
Multithreading – how to update GUI from thread using Delphi
I am using Delphi anonymous thread to execute code If I do this from within the thread, changes will occur, but once t…… -
java – Collator plus Comparator
I have a bean collection optionitemdto (attribute tag and value), and I am now sorting by tag using such things: Colle…… -
Java – how do I call the default implementation of “toString”?
If toString is not defined, Java uses some hashes to print the class name If toString is defined, how to implement thi…… -
Java – how to create packages (folders) in eclipse projects through plug-ins
I try to develop a small plug-in for eclipse and create several java files in several folders (packages) as the starti…… -
Operator – rxjava returns the subscribed value in the function
For some reason, I sometimes want to use RX operators instead of the normal Java way to convert data structures, becau…… -
Bison java example
Does anyone know if there are some tutorials and / or examples of using GNU bison and java online I searched the Inter…… -
Java – Android WebView cookie returns null
I want to set and retrieve a cookie in WebView in Android I've tried many cookie manager scripts to try to make it wor…… -
Java – locationclient getlastlocation() returns null
I'm new to Android programming and want to start by creating a very basic application that displays the latitude and l…… -
Multithreading – how to update GUI from thread using Delphi
I am using Delphi anonymous thread to execute code If I do this from within the thread, changes will occur, but once t…… -
Java – when to create an Enum instance?
I have a simple question about enumeration in Java. Please refer to the following code When to instantiate propname Co…… -
In Java, how to define the endian of the data being written when using dataoutputstream to write a file?
I am using dataoutputstream to write to the file, but I want to change the endian of the data This is how I write byte…… -
Java – replace substrings of matching regular expressions
I get some HTML and do some string manipulation and use similar strings string sample = "\n \n 2 \n \n \ndl…… -
java. util. zip. Zipexception: duplicate entry: Android / support / V7 / graphics / drawable / drawableutils class
I just changed the support library from 23.0 0 updated to 23.1 0, now when I build the project, I receive this error: …… -
Java – a method to speed up full count sorting
I had a problem at hackerrank Due to timeout, my first attempt passed all test cases except the last one After failing…… -
Java – my autoclosable Can the close () implementation detect potential exceptions?
When implementing autocolosable to use the Java 7 try with resources statement, I want to know if there are exceptions…… -
Java – class #getdeclaredmethods () returns inherited methods
See English answers > getdeclaraedmethods() being differently in Java 7 vs. Java 81 interface A { A setX(Object…… -
Java – how to parse / decompress / decompress Maven repository indexes generated by nexus
I've been from http://mirrors.ibiblio.org/pub/mirrors/maven2/dot-index/nexus-maven-repository-index.gz Downloaded the …… -
java-8 – java. time. format. Datetimeparseexception: cannot parse text at index 3
I use Java 8 to parse the date and find the difference between the two dates This is my clip: String date1 ="01-JAN-20…… -
Java – copy excel tables using Apache poi
How do I use Java Se and Apache POI to copy an entire excel table into another excel table in the same workbook? Solut…… -
Java – why do I get a non convertible type error?
If I use this class: public class BooleanTest { public static void main(String args[]) { final Object[] ob…… -
Java static members in subclasses accessed through generic parent classes
This seems like a new problem, but the last time I use Java, the language has no generics I have a class hierarchy (ch…… -
Java – how to draw images to JPanel or JFrame?
I have read the Oracle tutorial on how to draw images to JPanel or JFrame, but I can't seem to do it correctly I need …… -
Java – is there any reason why some methods in file use Boolean values to indicate its success (not just throwing exceptions)?
The file class in java contains methods that use Boolean values to indicate the success of the operation being perform…… -
Java – JSON and Moshi formatting
Does anyone know how to make Moshi generate multiline JSON with indentation (for human use in the context of config. J…… -
Multithreading – why is Google Chrome renderer multiprocessing rather than multithreading?
Every time I load browser tags in chrome on my Mac, the application forks out to another process This seems to work di…… -
Java – problem downloading file using content disposition
I want my program to have a pop-up window to save as a window option before the file starts downloading, but when I ru…… -
Java – an elegant way to use flatmap in flatingby
So I have a piece of code. I'm iterating over a data list Each is a reportdata, which contains a case with long caseid…… -
Cost per class in a Java application – fewer large classes or several smaller classes
What is the memory cost for each new class added to a Java application? >Is it better to have 5000 large lines or s…… -
Java – how to configure my log4j (using GlassFish) login log directory instead of configuration?
My log4j The properties file has the following line: log4j. appender. logfile. File = MyApplication. log My log file a…… -
Java – cannot mask jar with Maven (invokespecial / static)
Complete error message: The jar file I tried to shadow is located in my own remote repository, using sonatype nexus Th…… -
Java – how to make NetBeans start faster NetBeans took a lot of time to open
I don't know if it's just my computer, but NetBeans is spending a lot of time turning it on I wonder what I can do to ……