Java
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Inline comments in Java: / * * versus / *?
Why do I prefer to write inline comments in Java, as shown below: /** Init operation */ mindControlLaser.engage(); Ins…… -
Java – read the image from excel and store it in SQL server
I have a table called 'tab1' cl_id int //auto imcrement cl_image image I want to read the image in Excel from the imag…… -
Java: how to delete spaces in jformattedtextfield?
So I have a jformattedtextfield that lets users enter a number The number can be 1 to 99, so I used maskformatter ("##…… -
Java – hibernate preupdateeventlistener does not work
I am trying to implement hibernate's preupdateeventlistener in my project, but there is no response My configuration X…… -
Boolean expression optimization in Java
Consider the following methods in Java: public static boolean expensivecomputation() { for (int i = 0; i < Inte…… -
Java – what is the difference between these two urlencodings of URL
Some queries encoded UTF - 8 I sent to the server did not return the expected results Namely http://direct.jthinkws.co…… -
Java – endpoint with OAuth: get the current ClientID
I just started using endpoints in Google App Engine, and everything seems to work well My API rejects non whitelist cl…… -
How to substring a string to the second point (.) in Java?
I have a string with many segments by dots (.) Separate as follows: I want to get a substring up to the second point, …… -
Java – type set is not universal; It cannot be parameterized
My eclipse faces this strange problem Type set is not universal; It cannot be parameterized with the parameter < in…… -
Java – how to create a new activity, I can choose to add a new project from the database?
I created the database after this tutorial, and I created a button in the main activity that takes the user to another…… -
Java – token “;” Syntax error on, {expected after this tag
Why is there a syntax error in this line (as shown below) package org.temp2.cod1; import java.security.*; import javax…… -
Java – WebSockets, play framework and actor
I need to inform all users about adding new records to the database > Application. Java – here I put the socket han…… -
Java – how to get content in Web crawl
Hi! I'm trying to implement this pseudo code for spider algorithm to explore the network I need some ideas about the n…… -
Java socket server lags behind two clients
I'm a newcomer lol to stackoverflow, but I've always relied on this website I have a question about the java socket se…… -
Java – Maven ‘deploy’ causes code repackaging (bad signature) after signature operation
I want to deploy an artifact to the sonatype OSS repository The signature is invalid when deploying with the following…… -
The override equals method to compare multiple fields in Java
What is the best way to rewrite the equals method in Java to compare multiple fields? For example, I have four objects…… -
Java – how to filter by entity class attribute in Hibernate
I use hibernate in Java to map classes to database tables I have a personnel list. Each item has many pets and each pe…… -
Is java – spring too complex for JDBC operations?
I've just seen spring's JDBC framework - it looks like a learning curve - and I still can't find the latest quick star…… -
Java – generate name arrangement and database
Using "generating all permutations of a given string" as a reference, I try to have my program (when a name field is d…… -
Java – images that need to select code from the camera and Gallery – applies to all Android phones
private void selectImage() { private void selectImage() { final CharSequence[] items = { "Take Photo","Choose fro…… -
Block / disable JavaFX 2 WebView right click
I am looking for a way to prevent / disable JavaFX scene. web. Right click in WebView More specifically, I don't want …… -
Java – static variables and methods
I encountered a class set like this: public class MyClass { private static boolean started = false; private MyCl…… -
Leiningen Java agents does not work in uberjar
In my leiningen project, I have the following configurations: :java-agents [[com.newrelic.agent.java/newrelic-agent "3…… -
Java – check if the file is open
I need to write a custom batch file renamer I've done most of the work, except I can't figure out how to check whether…… -
Java – spring, oauth2: Lost authentication details after refreshing token
I have two spring applications: authentication services and business services When a web service user authenticates on…… -
Java – Import Hadoop source code into IntelliJ
Does anyone know what to do? I read import Maven dependencies in IntelliJ idea But it doesn't work thank you Solution …… -
Java – the typed method in the jparepository does not return the correct type
I have a method in the jparepository that should return a list of JPA entities: @Entity public class SomeEntity { …… -
Java – expose implementation information to callers?
In JLS capture conversion, it discusses two methods of writing reverse method signatures: > public static void reve…… -
Java – why do you accept static final variables in local classes?
I use Google to search widely but to no avail I can't seem to revolve around this concept Why do local classes accept …… -
Java – Concurrency: how do I use incoming and outgoing queues to implement an executable?
It is well known that ThreadPoolExecutor uses some blockingqueues as queues for incoming tasks What I want is for the …… -
Java – spark accumulator reset
There is no way to reset the spark accumulator through the driver so that the actuator accumulator will also be cleane…… -
Java – in a single build Compiling source code with two different sets of dependencies in gradle
I'm using the gradle script. I have two separate cognitive lists and other dependency lists Listing 1: cognos:a:10.1.1……