包含标签：Java 的文章
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Java custom task class timed task execution example callable and future interface usage
Callable and future interfaces callable is an interface similar to runnable. The classes implementing callable interfa…… -
Discussion on the method of deleting duplicate elements in array in Java
Problem: for example, I have an array (the number of elements is 0 HA), and I want to add elements that cannot be repe…… -
Comparison between spring annotation configuration and XML configuration
Annotation configuration has many advantages over XML configuration: it can make full use of java reflection mechanism…… -
Specific examples of reading and writing Java IO stream files
introduction: The operation of Java IO stream is very common. It is basically used in every project. Every time you en…… -
The coding implementation removes duplicates (C and Java instances) from the unordered linked list
If you can't use temporary cache, how do you code it? -
Java string splicing and performance analysis
Suppose there is a string, we will do a lot of circular splicing operations on this string. If "+" is used, we will ge…… -
Java array output instance code
To output the elements in an array, we usually use a for loop, such as: -
Introduction to escape characters in Java
There are four escape characters in Java: Escape characters in Java: 1. Octal escape sequence: + 1 to 3 5 digits; Rang…… -
Java – how to simulate object getClass？
I'm developing a java project and want to create one for dto Write a unit test using the equals method Yes In the equa…… -
A concise way to get the minimum and maximum values of Java 8 streams
Is there a simple way to extract the minimum and maximum values of the stream (based on some comparators)? It seems th…… -
Java – why do I need to handle thread Exception of sleep()?
To get this code for compilation, I can: >Put my phone number thread Sleep () is placed in the try / catch block, o…… -
Java – interface extends itself
I have used this website for about 6 months, and it's time to ask my first question, because I can't find the answer, …… -
Unable to send email from Java EC2 server
Try to send mail from Amazon EC2 server using java code, but you will receive an exception – Exception in thread "main…… -
Java – JPA query with case when in the where clause How do you do it?
How to use JPA to run the query shown below (it applies to pure SQL) SELECT t FROM table t WHERE ( CASE WHEN (( …… -
Get char value in Java
How to get the utf8 code of a char in Java? This is a table at more values I tried character Getnumericvalue (a), but …… -
Can I cheaply call a Java method to get the name of the current method?
Basically, I have a record statement in a method Whenever the method is called, I want to easily call the name of the …… -
How to create a help system in Java
We are developing new web applications and we must integrate help Does anyone know any good open source help applicati…… -
Java – why doesn’t the compilation of public API leaked internal types fail?
I have the following Java 9 modules: module com.example.a { exports com.example.a; } Use export type: public class…… -
Java – models, views, and controllers – what should be created?
According to good programming practice, which controller, model and view components should be created first at the beg…… -
Java – wsimport that optimizes multiple WSDL using common types
I'm working on a fairly large WS project involving more than 20 different web services Although these web services are…… -
Java – dynamically add projects to jcombobox
Vector combo@R_119_2419@Items = new Vector(); Vector combo@R_119_2419@Items = new Vector(); DefaultCombo@R_119_2419@Mo…… -
Java – an iterator that transforms and returns the same object Bad practice?
I wrote GC friendly code to read and return a series of byte [] messages to the user Internally, I reuse the same Byte…… -
Signal processing – why do convolution results have different lengths in frequency domain vs frequency domain?
I am not a DSP expert, but I understand that there are two methods to apply discrete time domain filter to discrete ti…… -
Java – what is a view of a collection?
I've been reading the terminology view while using the guava series and reading its documentation I have sought an exp…… -
Java – servlet filters all requests
I want to know how to use the web Set a filter for each request call in XML? Solution Just create a filter and map it …… -
Java – how to test code written for AWS API
I am writing an application in Java to upload a file to AWS S3 The file will be provided to the application in the for…… -
Java – how to force Maven mojo to be executed once at the end of the build?
I have a mojo that I want to execute once, once only after the test phase of the last project in the reactor use: if (…… -
Java – what’s the best place to start learning servlet / Tomcat?
I need to start developing servlets / JSPS and Tomcat I need to speed up What would you suggest to get up faster? Ther…… -
Converting XML files to CSV in Java
@Before, there may be some repeated questions and suggestions. I don't think this is the first time. Please be as brie…… -
After completion, the java thread will be deleted
I use the following method to generate a thread every few seconds. Each thread takes about a second to complete Are co…… -
Java – pathparameters document exception (urltemplate not found)
When using pathparameters to record URI path parameters, it is as follows @Test public void documentGetRouteById() thr……