Recent Posts
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javax. imageio. Is imageio broken? It rotates some images
Below you will see a delicious cake "simit" from Turkey It's taken from the iPad 2, so it's a JPEG with a size of 720 …… -
The Java implementation of producer consumer throws Java lang.IllegalMonitorStateException
import java.util.LinkedList; import java.util.LinkedList; import java.util.Queue; class Producer extends PubSub imple…… -
What Java data type corresponds to Oracle SQL data type numeric?
Oracle jdbc driver assigns Java data type to Oracle SQL data type numeric? Does this vary with the size of the numeric…… -
Java – @ size, @ length and @ column (length = value)
What is the difference between the validation check of the following three fields? @Entity public class MyEntity { …… -
UTF-8 encodes Java strings into properties
I have a single UTF - 8 encoded string, which is a series of key - value pairs that need to be loaded into the propert…… -
Java – GWT and enumeration issues
I have an enumeration in the client of the GWT application. When I try to run it, I receive an exception related to se…… -
How do I unit test the javanica @ hystrixcommand annotation method?
I am using javanica and commenting on my hystrix command method, as follows: @HystrixCommand(groupKey="MY_GROUP",comma…… -
Java – why does the spring task scheduler wait for the last task to complete?
I have the following task scheduler settings: <bean id="Task" class="foo.bar.Task" /> <bean id="TaskSchedule…… -
Java – hibernate subquery
I have a problem creating subqueries using hibernate Unfortunately, the subqueries class has almost no documentation a…… -
Java – JDBC uses select for update to lock a row, which does not work
I have a select problem with MySQL For update, this is the query I tried to run: SELECT * FROM tableName WHERE HostNam…… -
Java – deploy jax-ws web services on Tomcat
Note that Java 6 contains javax xml. WS, I can create a stand - alone web service Solution Download the subway from he…… -
Java – JPanel does not use SetSize and setprefferedsize
Please explain why it doesn't work. You can also publish a solution to solve this problem Thank you very much for your…… -
In Java, there is no two – to – long conversion
I need to convert double to long and keep its binary structure instead of numeric value Just change the type, but keep…… -
How to create an OAuth request using Java?
I need to use OAuth to connect with viago website Referring to their documentation, I need to create a request similar…… -
Java – MapReduce / Hadoop getting started
Recently, I have read a lot of information about MapReduce / Hadoop and think this is where the industry is turning Ca…… -
Java – what is a good combination of tools currently used to implement rest / J2EE / database custom authentication
I just want to know what is the good combination of tools / frameworks / libraries for implementing rest API on J2EE a…… -
Java – ThreadPoolExecutor: how does it reuse threads
I read about ThreadPoolExecutor wired process pool, which is destined to reduce the cost of creating new threads (at l…… -
Java – resource leak: ‘in’ has never been closed, even though it is closed
I know there are several similar problems here, but most people have forgotten to put a close () instruction in their …… -
Java – I can kill or complete () an activity in a thread other than a thread?
I wonder if it is possible to create a thread and kill / complete the activity, if so, how can it not work in the doin…… -
Java – unit testing, static and factory
I'm implementing a model in Java. It needs to iterate a set and go through some identification stages. It involves loo…… -
Java – Find Unused public members in eclipse
I have a class with 1600 public static members I have to find and delete unused Is there any way to do it in eclipse S…… -
Threshold image using OpenCV (Java)
I'm working on a project with OpenCV I need to convert the following image to a threshold image I tried this function:…… -
Java – what is imageobserver?
When you draw an image, you need an image observer New comments new new new flag new new new flag new new flag new fla…… -
Java – Oracle jdbc driver statement cache and bonecp statement cache?
I am using the Oracle jdbc driver and evaluating bonecp I asked myself if I should use one or another for statement ca…… -
Java – how to handle thousands of quartz queries gracefully?
We have a required application >Reprocess large amounts of data at night, and > reprocess large amounts of data …… -
Java – LDAP user password authentication using JNDI
public static void main(String[] args) public static void main(String[] args) { String INITCTX = "com.sun.jndi.lda…… -
How to generate serialVersionUID programmatically in Java?
I am developing a project to generate java files I want to be able to add serialVersionUID just like using the serialv…… -
Rotate the coordinate plane of data and text with Java
I need it: The following code sets this problem It works except for two problems: 1.) Draw the data point, the upper l…… -
Detect OS sleep and wake up events in Java
Is there any way for Java programs to detect when the operating system is about to go to sleep, or fail, or at least d…… -
Java – making a flash screen with an eclipse progress bar
My main class loads the configuration from the file and then displays a framework I want to use a progress bar like ec…… -
Java – multiple object types in an ArrayList
I have an abstract class named user, which can be created as student type or teacher type I have created an ArrayList …… -
Concurrency – can a single process run in multiple cores?
Can a single process run different threads on different cores? (I think they can) @ h_ 301_ 3@ In this case, different……