包含标签：Java 的文章
-
Java – how do I find file sizes in scala?
I'm writing a Scala script and need to know the size of a file How to execute correctly? os.stat('somefile.txt').st_si…… -
Java – how to add references in eclipse
I developed some software in access / VBA It handles lotus notes, so in the visual basic editor, I just went to the to…… -
Java – Scala point syntax (or missing)
When I came across a piece of code that meant nothing to me, I was experiencing this wonderful book Programming in sca…… -
Does Java support Julian calendar?
Oracle docs http://docs.oracle.com/javase/6/docs/technotes/guides/intl/calendar.doc.html It claims that Java supports …… -
Java – for a class that uses Jackson to execute collection, deserialization fails
I have the following JSON: { "item": [ { "foo": 1 },{ "foo": 2 } ] } This is basically an object that contains…… -
Java – generate fractal rotation
I need to use the algorithm iterated function system to draw fractal vortices This fractal has coefficients: 0.745455 …… -
Java – spring securely switches to LDAP authentication and database permissions
I implemented database authentication for my web pages and web services @Configuration @EnableWebSecurity @EnableGloba…… -
Java – a description of how the classloader loads static variables
Well, this is a novice question about Java, but I don't seem to be sure I have the following code in my course private…… -
Java – what is mongodb’s jdbc driver class name?
In the case of MySQL, like com mysql. jdbc. Like driver, what is the jdbc driver class of mongodb? In Java code, you c…… -
How to generate RTF from Java?
I work on a web - based tool that provides customized printing At present, we use java to build an XML structure, prov…… -
Java – connection pool for dynamic database connections
The problem setting is based on a web service (spring / Java, tomcat7 and MySQL). Each user obtains its own database, …… -
Java – hibernate SQL query result mapping / conversion to object / class / bean
1 2: Select (table. * *) / (all columns) ok String sql = "select t_student.* from t_student"; //String sql = "select t…… -
Java – which runs faster, ArrayList or LinkedList?
There is already an answer to this question: > when to use LinkedList over ArrayList? 30 List li = new LinkedList()…… -
JPA temporary information was lost during creation
I have an entity with a transient field When I want to create a new object instance, I lose my transient information T…… -
Java – calling a method is faster when you initialize an object or save it as a variable and call the method
Suppose there is a classA class that gives the value I need through non - static methods If I only need the value of o…… -
Multithreading – testeract 3.00 multithreading?
I read some other posts and suggested that they add multithreading support in 3.00 But I don't know if I add it after …… -
What experience have you had with functional Java projects?
I am reading the following questions – how safe would it be to use functional java to add closures to a Java productio…… -
What does this () mean in Java
There is already an answer to this question: > what the use of this() in LinkedList java2 It appears to work only w…… -
Java – Android Maven does not start the simulator
When I right-click My Android project and select run – > Android application The simulator is started and the chang…… -
Java – operator = = wrap differential behavior on class objects
Any body can explain what happened in my output static void main(String args[]) { Integer aa = Integer.valueOf("12…… -
Can anyone simply describe the difference between the three closure proposals and their current state in Java?
I'm reading closures that will appear in Java 7 I'm a little confused because on the one hand, there are many good art…… -
How to use org. Org in Java apache. commons. Lang namespace?
I tried using org. Org in eclipse apache. commons. Lang. notimplementedexception, although you can see from IntelliSen…… -
How to understand “consistency before occurrence is not enough” in Java
In Chapter 17 of Java language specification, there was a part explaining why "lack of consistency" Here is an example…… -
How to use the java7 file attribute APIs to get the digital groupid / userid?
I can use the following code to get the name of the file owner; final PosixFileAttributes basicFileAttributes = …… -
Why do we need abstract classes in Java?
Why do we need abstract classes in Java? If you will never be an object, why do you do it? How do you use it? Why is t…… -
Java – how to design a system to send records and retry sending if no confirmation is received?
I'm working on a project where I need to consume a lot of records, and then I send these records to other systems usin…… -
Java – Android studio – gradle 1.5 – core library options
There is a problem with my android project and gradle 1.5 I know that searching from Android devices may not be the be…… -
Java – why does UDP datagram fail even when the process is running locally?
Then I am developing a java interface between the streaming media server and the flash client I noticed that even if b…… -
Java – large inner classes and private variables
One thing I've experienced several times is that a service class (such as JBoss service) has become too large due to t…… -
Java – how to bind this service in Android?
This is the code in my activity Start the intention and connect, right? hello_service = new Intent(this,HelloService.c…… -
The best Java Jabber Client Library
What are your good / bad experiences with the Java Jabber library? Solution I have good experience in smack library I …… -
Java – loop through the list, a better way
When I write and discover new ways of working in Java, I'm always confused about the better way to loop lists to outpu……