Recent Posts
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Java – how to find enumerations of class definitions?
I know that I can get public static members of a class in the following ways: obj. getClass(). getFields() But that di…… -
Java – questions about Solr documents, etc
Website: classified advertising website (users can put advertisements, search advertisements, etc.) I plan to use Solr…… -
How to clear the screen output of Java httpservletresponse
I'm using servletresponse getWriter(). Write (string) writes to the browser window But how do I clear text previously …… -
Look and feel in Java
I work a lot with the look and feel in Java and it works well, but the only problem is that the only component that ha…… -
Java fuzzy type method?
Editor: This is not a code problem at all, but there is an error in the groovy Eclipse Plug-in（ http://jira.codehaus.…… -
Java – algorithm problem of finding all valid words in the dictionary
Given a dictionary (just a list of strings) You have received an unknown number of letters from an external source Giv…… -
How do I test null keys on any Java map implementation?
I want to make sure that the map passed to the method as a parameter does not contain a null key People will think tha…… -
Java – how to use the two objects of the most special type as the return type?
What I basically want is to infer a more professional type, as shown in the following example: Predicate<Object>…… -
Java – slim application server for demonstrating web applications?
I have a small pet web application project. I want to talk to those who don't have an application server (and who don'…… -
Java – why is string:: isempty valid when a static context cannot reference a non static method?
I understand the error message I know I cannot access non - static methods in a static context But why can I do the fo…… -
Task – TPL dataflow vs normal semaphore
I need to make an extensible process The process mainly has I / O operations and some secondary CPU operations (mainly…… -
Java – Convert floating point arrays
I've been writing Java for some time and even started teaching it to others I find it difficult to explain to new stud…… -
Java – installing IBM JRE on windows (non IBM machines)
I am developing a Java 5.0 application that connects to the default message queue of websphere application server My a…… -
Java – when to use global transactions or spring AOP for transactions
Q1. I know that when we need to deal with multiple databases, we need to use global transactions But from this article…… -
Java development standards and tools (compared with c#)
I don't know anything about the Java platform. I want to know what tools (and methods) can be used to help develop mai…… -
How does Java – class object relationships work?
What happens when we create an instance of a class? I mean, every field and method of the class will be inside the obj…… -
Java – same day from this year
I need it on the same day this year Example: now it is 2019, and the variable contains the value July 15, 2022, so I n…… -
Java – jQuery Ajax error resolution
I'm developing a striped application that uses some jQuery to make the UI more dynamic / usable I set up an error reso…… -
Can Java be used to write Win32 system services?
The title summarizes it I am considering using jabaco because it will generate Exe (and. Jar files), and I am more fam…… -
Delete temporary Internet files for Java
In the Java control panel on windows, there is the setting of "temporary Internet File", in which all applet and webst…… -
Java – get customer orders: set getallorders() and set getallorders()
I haven't done much Java programming, so many unresolved ORM problems come to mind and seem quite direct to more exper…… -
How do I download old Java
My daughter began to study a level computer science in September this year and hopes to learn a MOOC course on Java in…… -
Why not pass every method in Java and throw an exception when passing a function type parameter instead of a consumer?
See English answers > Why do consumers accept Lambdas with statement bodies but not expression bodies? 3 This is my…… -
Java enum valueof has two parameters?
Why does valueof have two parameters? In Java documentation for valueof But most of the examples I see online say: enu…… -
Java – returns a non hidden file
See English answers > how to negate a method reference predict 12 In Java 8, this can be shortened to: Returning a …… -
Java – vaadin flow: the difference between components and elements
In vaadin flow, there are elements besides components In the Javadoc of the element, say: What does this actually mean…… -
BizTalk – read twice from DB receive port
My receive port is sqlbinding and polling type It calls SP to obtain records and starts the corresponding business pro…… -
Java – how to make two clients chat with each other?
This is not my homework (my homework is just chatting with clients and servers. It works normally, especially with you…… -
Java – is the public modifier in the private class of the package redundant?
Suppose I'm in package com Test in test Java declares a class test: I want to know, isn't the public access modifier o…… -
Java – condition check C: if always fails
c: If the test always fails to me, it will never enter the loop I use the following namespace xmlns:fn="http://java.su…… -
Java – how do I add an array in the middle?
I try to create a method named insertat, which accepts three parameters (int index, int n, int value). If I call: Int …… -
Java – why call a method call that takes a parent class as a parameter instead of a method that takes a child class as a parameter?
I have a class named a and a class named B, which extends a public class Main { public static void main(String[] a……