Java
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Java – Eclipse: hover and disconnect from the debugging Perspective
Due to the upgrade of eclipse (Galileo build 20090920-1017), the value of the variable is no longer displayed in hover…… -
Java – PDF report with embedded HTML
We have a Java based system that can read data from the database, merge various data fields with preset xsl-fo tags, a…… -
Set your own class as the key in Java HashMap
I have a class that I want to set as a key in HashMap I have implemented the CompareTo method of this class But when I…… -
Is time regression enabled in Java 9 EA?
I've heard of it >Each major version of the JVM becomes faster (in some ways) > 9 modularity will lead to faster…… -
Should I manually implement the spring data warehouse method using the Java 8 default method?
When using the new spring data Evans distribution, I'm glad to use some good things to use with Java 8 One is the defa…… -
Java – streaming audio from PC to smartphone?
For Christmas 2016, my father and I want to make a light for our community with lights and music We have light setting…… -
Java – mockito mock object returns null
Hi, I'm trying to implement some tests for my JSF application and mocks. I use mockito (I also use springs) @RunWith(M…… -
Java generic boundary type
Are the following two signatures the same? public static <T> void work(Class<T> type,T instance); and publ…… -
Java – ant: how to compile jars containing source attachments
How to create a jar containing source attachments using ant? Maven did it, but I haven't been vivid since 2003 (well, …… -
Java – if multiple threads are updating the same variable, what should be done to update the variable correctly for each thread?
If multiple threads are updating the same variable, what should I do to update the variable correctly for each thread?…… -
It’s slower than the sum of Java
This is the case cat sum100000000.cpp && cat sum100000000.java #include <cstdio> using namespace std; …… -
Java programming environment: Emacs or eclipse?
I'm new to Java. I need to build a programming environment (edit, compile, test, debug and deploy / make jar files) Th…… -
Java – how do I retrieve the last inserted value in my database?
Anyone can tell me about the query for the last inserted value in the database column The problem is that after using …… -
Java – why do some xhdpi phones only display images in / RES / drawable?
This is a scene There are folders: Drawable LDPI > drawable MDPI > drawable hdpi > drawable xhdpi Images (usu…… -
Java – deserialize immutablelist using gson
I use a lot of immutable collections, and I'm curious about how to deserialize them using gson No one answered. I foun…… -
Multithreading – how do I manage the return values of threads?
I created a class derived from TThread to execute queries in the background I want this class to be separate from the …… -
Multithreading — is it safe to call multiple threads of DLL function in a single application?
I write a server application in Delphi 2009 to realize several types of authentication Each authentication method is s…… -
Java – how can I fail Hudson / Jenkins if the sonar threshold is broken?
I'm using Maven to build my java application. Jenkins provides metrics for CI and sonar At present, I have a construct…… -
Java – docker settings
I'm reading docker today and even trying to run it on vagrant's laptop But I still don't know why, especially how to i…… -
How does Java embed virtual function boundaries?
I am reading some materials to explain whether Java can be faster than C, and I encounter the following quotation: "Ja…… -
Java – get an exit instruction from the library
To my surprise and fear, I just met system Line of exit (1); In the library I use I'm planning to contact the author o…… -
Guava’s immutablelist Is the builder thread safe?
Guava’s ImmutableList. What is the thread security of builder? Javadoc doesn't say Solution Although guava invariant c…… -
Java – why does jodatime and calendar return different results
Why did this test fail: DateTime dateTime = new DateTime(1997,01,00,DateTimeZone.UTC); long jodaMills = dateTime.g…… -
Java – Apache nutch – path problem
I tried to set Apache nutch to grab the URL and follow this guide As an old guide (this guide is 1. X, I use 2.3), I h…… -
Java – jooq and transactions
I've been reading about transactions & jooq, but it's hard for me to see how to implement it in practice Suppose I…… -
Java – a good working example of selenium 2 and webdriver
I've been using selenium 1, but now I want to migrate to selenium 2 / webriver To be honest, I find it a little diffic…… -
java – Hibernate：org. hibernate. hql. ast. Querysyntaxexception: unexpected token
I use hibernate. I have this query: List<Person> list = sess.createQuery("from Person").list(); With this statem…… -
Replace all substrings that appear in the string – is this more efficient in Java?
I know two ways to replace all substrings in a string Regular expression (assuming that "sub character substitution" d…… -
Java – how to query the values of columns set in parse as pointers to other tables
I use parse as my application. I want to query a table in which columns are set as pointers to other tables This is a …… -
Java – why can’t a class extend a static nested class?
This class: public class OuterChild extends OuterChild.InnerParent { public static class InnerParent { } } Una…… -
Java is backward compatible, but why do we need to upgrade many libraries when we upgrade the JDK from 1.6 to 1.8?
Recently, I upgraded the JDK version from 1.6 to 1.8 in a java project However, there are some compilation or runtime …… -
Java – how to get files from a resource folder Spring framework
I tried to dissolve my XML file: public Object convertFromXMLToObject(String xmlfile) throws IOException { FileInp……