包含标签：Java 的文章
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Java – JPA / Hibernate has too many increments for Oracle sequences
I use hibernate on my java project. I have Oracle dB For an ID column, I determine a sequence with an increment of 1 B…… -
A good java (Tomcat) soap Library
ANSVER： I have to develop a client / server system that uses Tomcat (6) as the server and the client created in C # T…… -
Java – how to write a method that accepts stacks and queues?
So I wrote this very big method If you give it a stack, it will return a stack If you give it a queue, it will return …… -
Java – error creating bean in quartz scheduler
I changed the quartz library from version 1.5 2 is changed to 2.1 2. Using its old version, the project runs and works…… -
Multithreading – why can’t signals / slots work with multiple threads?
class A : public QObject{ class A : public QObject{ Q_OBJECT signals: void a_sig(); public: A(){ } public sl…… -
In Java, enumeration What do you mean?
What is enumeration? > meaning? Is there any way to represent general purpose? Solution <？> Syntax is Java's…… -
What is the reason for setting the minimum Java heap size?
I can set the minimum and maximum Java heap size by passing the parameters - XMS and - Xmx respectively@ H_ 403_ 7@ So…… -
Java swing GridLayout vertical constraint
Can I add components in GridLayout vertical? I mean, the next one is higher than the previous one? thank you Solution …… -
Simple java Pokemon extinguishing simulator
I wrote a class to create and fight Pokemon, but I couldn't figure out how to call the battle method in the tester cla…… -
Java – modify color selector panel
I am creating a color selector and need to modify one of the color selector panels What I want is that I want to input…… -
Java – parsing large xlsx files, date format
Because the xlsx file may contain millions of lines, I decided to use the POI event model to sample from here (example…… -
Java – in wicket 1.5 (. 2), there is no component reloaded on the URL?
For the first time, I used the following URL to navigate to my application: In debug mode, I saw wicket instantiate my…… -
Occurs before the java thread starts
I read somewhere that starting a thread has some special effects on events before the relationship Now I'm not sure if…… -
Performance overhead using volatile for setjmp / longjmp
For setjmp / longjmp to work, you need to declare the local variable volatile If someone compiles their code with - O3…… -
Java – select the first index in the collection
I sometimes feel like I'm reinventing the wheel I want to know in Java / Jakarta commons / guava /? Whether there are …… -
Java code is equivalent to the following PHP code
The following PHP syntax may be Java equivalent: $newPerson = array( 'firstname' => 'First','lastname' =…… -
Java – how to use Guice to inject impl of some interfaces into Android activity
I use Guice 3.0 on Android to do some di I have public interface APIClient { } and public class DefaultAPIClient imple…… -
Multithreading – how do I call runnable using the spring framework?
I have a service that needs to call the runnable class Here are the lines of code used in my service @Autowired privat…… -
Java – how to append two bytes to int
I tried to append two bytes with hexadecimal values and store them as integers Obviously, everything is an unsigned va…… -
Debugging and publishing configuration in Java NetBeans project
Can I use a debug / release configuration that I can choose between so that I can change some variables when compiling…… -
Java – generate MouseMove event using dispatcher?
Do you use Java awt. Component. DispatchEvent (awtevent) does a MouseMove event? .dispatchEvent(new MouseEvent(client.…… -
Java – unit test for parsing files. How to load files from within the application?
I want to test a service method for parsing Excel files >I want to create a test folder for Excel files under web a…… -
Java JSON parsing
Well, I've been trying for three hours now Using a lot of APIs, it still doesn't work properly I'm trying to parse { …… -
Java – Dom4j xmlns attribute
I want to add only the xmlns attribute to the root node, but when I add a namespace to the root element, all subsequen…… -
JUnit conditional disassembly
I want conditional disassembly in my JUnit test cases, such as @Test testmethod1() { //condition to be tested } @Teard…… -
Java and type security
When comparing Java and JavaScript, the MDN JavaScript guide explains the following: Of course, with regard to the fir…… -
Import nanos into Java sql. Timestamp
http://docs.oracle.com/javase/6/docs/api/java/sql/Timestamp.html The only ctor that doesn't belittle needs millis Is t…… -
Java – sequencegenerator problem for unit testing in HSQLDB / H2
I've tried to use HSQLDB and H2 for unit testing, but I'm facing the problem of sequence generator The field declarati…… -
Java: how to make this serializable?
I need the following class to be serializable package helpers; public class XY implements Comparable<XY> { …… -
Java – generic parameters for serializable collections
I have such members in a serializable class: private final Map<String,List<T>> categoryMap = Maps.newHashM…… -
Java – how do I get numbers? How many items have different names?
I have a list < custom > Where is custom class Custom { public int id; public String name; } How do I ge…… -
Java – spring using security: authentication principal in the link username
OK, this should be a simple one In the header In the JSP x file, I want a link to guide authenticated users to their u……