Java
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Java Network: Improvised socket / InputStream
I'm implementing an event - oriented layer on a java socket. I wonder if there is a way to determine whether there is …… -
Java – SQLite selecting from like statements does not work?
When I look at the database and run this query, I get the expected results SELECT * FROM users WHERE options LIKE '%[-…… -
Java – spring boot crudrepository auto assembly error
I have a following code structure for my springboot application: I exception nosuchbeandefinitionexception on bean use…… -
Brotli compression multithreading
My understanding is that brotli stores the block size information in the meta block header, only the final uncompresse…… -
Java – cannot run swing from the command line
I use the command line in windows to compile and then execute my @ L_ 502_ 1 @ procedure I've already gone http://java…… -
Java – completable future usability and unit testing
I was learning java 8 completable future and finally got this All fists, what do you think of this line of code? I nee…… -
Java – add additional path to exec Maven plugin
I want to add an extra classpath for exec Maven plugin <plugin> <groupId>org.codehaus.mojo</groupId&g…… -
Unable to find iframe in selenium webdriver (Java)
I want to select an iframe element in the pop - up window I can enter the pop-up window, but I can't find iframe The f…… -
The Java enums value is used with generics
I need something like this: public enum Enum { ENUM1<Class1>(Class1.class,"A DESCRIPTION",new Class1()),ENUM…… -
Java – Autowired gives a null value in the custom constraint validator
I'm new to spring, and I've found answers to some questions on so Here are the links: Spring 3.1 Autowiring does not w…… -
Java – use xmlcoder to convert encoded XML to list
I'm writing an application that reads a lot of basic user details in the following formats; Once read in, it allows us…… -
Java – args4j: how do I manually sort options in usage?
In args4j, I define the following options: @Option(name="-host",usage="host to connect") @Option(name="-port",usage="p…… -
Java – JPA @ entity inheritance
I have been studying JPA / Hibernate @ entity inheritance for some time, and it seems that I can't find anything to so…… -
Java – lists all sequences in HSQLDB 1.8
How to list all sequences in a specific schema in HSQLDB 1.8? Note: HSQLDB 1.8 does not support the information introd…… -
Java8 stream – HashSet of bytes from intstream
I'm trying to create a HashSet < byte > bytes 1, 2, 3,... 9 using the Java 8 streams API I want to use intstream…… -
Java – the difference between transient final and transient final wrapper types for basic types
What is the difference between transient final int and transient final integer Use int: transient final int a = 10; Be…… -
Can I define custom types using primitives in Java?
For example, the following is the syntax correct code Double number = 10.0; Can I define my own class, such as price P…… -
Java – add image to jar
I want to set the icon to my JFrame I do the following: Image icon = Toolkit.getDefaultToolkit().getImage("src/images/…… -
Using AES to effectively encrypt files in Java
I am developing an application that should encrypt some small (less than 1MB) and large (about 500MB) files Solution S…… -
How to correctly use Java 8 option to conditionally return values or throw exceptions?
I want to implement code like the following to verify the input in my @ restcontroller so that I can avoid explicit nu…… -
How to create using Java DST embroidery file
I want to create one in Java DST embroidery file Is there a support library available? Or whether you can use java to …… -
Java – moves an object from a point in a linear path
I try to move a sprite in a straight line on the screen towards the position where I touch the screen. What I do is up…… -
Java – substitute for spark, fat and jar
I know there are at least two ways to put my dependencies into spark EMR jobs One is to create a fat jar, the other is…… -
Java 8 streams – collect potentially null values
I have the following code: private static <T> Map<String,?> getDifference(final T a,final T b,final Map<…… -
Java – shared disk with comps
I have a cluster with shared disks between different nodes How do I configure comp superscalar to consider this shared…… -
Java – how to determine the datasource being used by a hibernate session?
I have several unit tests that should use HSQLDB, but I know some of them are actually using physical databases I want…… -
Java – GWT requestbuilder – cross site request
I'm trying to create a cross site request using the GWT request builder, but I can't make it work As you can see, this…… -
Performance loss of getserializedsize() in Java – protocol buffers
Does calling getserializedsize() on a GPB message cause performance degradation before serializing the message using w…… -
Java – use the for loop to get the Hamming distance between two strings
In this task, I need to obtain the Hamming distance between two strings sequence1 and sequence2 (the Hamming distance …… -
Java – why doesn’t the acquire () method in semaphores have to be synchronized?
I'm using java to enter semaphores and reading this article http://docs.oracle.com/javase/1.5.0/docs/api/java/util/con…… -
How to use JUnit to test the spring controller method
Hi, I'm new to spring and JUnit There is a method in my controller I want to write JUnit (getpersons ()) for this meth…… -
Java – what is the reason for using openjdk?
I understand the difference between Oracle JDK and open JDK in some way But I can't find a reason to use open JDK, bec……