Recent questions tagged JAVA

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java - JPanel not listening to key event when there is a child component with JButton on it

I'm working on a map editor for my college project. And I had a problem that the map panel is not listening ... help me out? Thanks very much See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Multiple WebSecurityConfigurerAdapters: JWT authentication and form login in spring security

I have spring boot app with thymeleaf. I am using spring security formLogin method for security and now I need to ... make this work. thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Can I tailor a maven build based on platform?

Specifically, I run the launch4j-maven-plugin plugin to generate me an .exe file. This only works on Windows, so I ... </goals> </execution> ... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - UCanAccess driver not found when converted to JAR file

I made a project named clinic which has 3 jframes login clinic management generate patient ID It is connected to an ... file. Hope this helps. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to obtain an InputStream of a public webcontent resource?

I have a collection of images packaged in my WAR and I depict them in a <p:dataGrid> using <p:graphicImage> ... or whatever) to this image? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to send remote service message onclick via Messenger

I'm really new on Android and Kotlin.I have one Server app and one Client app. I want to send string from ... ) } What you can suggest me? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - If statement always giving the same answer

import java.util.Scanner; class Practice { public static void main(String args[]) { System.out.println(" ... "treatsPerHamster"? Thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Regex search with pattern containing (?:.|s)*? takes increasingly long time

My regex is taking increasingly long to match (about 30 seconds the 5th time) but needs to be applied ... and adding formating afterwards. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Scanner keeps skipping input whist using nextInt() and loops

I am using a while loop to make sure that the value entered to a scanner object is an integer as such: while (! ... input. How do I stop this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to determine min and max value for ItemMargin property in StackedBarChart using jFreeChart

I am using jFreeChart api to make one application such that on movement of slider the gap width in between ... would be really helpful. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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309 views

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java - Apache poi putting hyperlink in images

This is a Method I use for inserting images as icons in Excel: public void insertIcons(String URL, Sheet sheet ... in using it. Any suggestions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Converting List<List<Integer>> to int[][]

I am writing a method which converts Integer data type from a List of Lists, to a primitive array of arrays, ... > cannot be converted to int. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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364 views

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java - System.currentTimeMillis() is not accurate on windows XP?

It seems System.currentTimeMillis is not very accurate. See this sample: public class MillisTime { public static ... second of current time? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Assigning a image to a String

Is there any way that I could assign a specific image to a String so that the output would be something like ... the String with a JLabel): See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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236 views

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java - How to use cucumber table when it is code driven

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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311 views

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java - How to write HQL JOIN query for multiple table's selected Columns using Constructor In The Select Clause

I'm writing HQL JOIN query for multiple table's selected Columns using Constructor() ... at org.springframework.messaging.handler.invocation.AbstractMethodMessageHandler.handleMes...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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259 views

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java - How to restrict Android device to not open some specific site e.g.youtube, facebook

I am writing an application for Android devices, Now I want to implement the functionality that if my application ... no good source. thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Does a SubClass object in an ArrayList<SuperClass> keep methods unique to SubClass?

Basically what the title says, but some elaboration. I have a SuperClass with a couple of SubClasses. I needed an ... , how do I access them? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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397 views

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java - TreeMap<Integer, Integer> remove not working

I'm trying to get the top 10 elements of a TreeMap by executing this loop: TreeMap<Integer, Integer> sortedMap = ... : Java Map sort by value. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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387 views

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java - Writing unicode to rtf file

I′m trying write strings in diffrent languages to a rtf file. I hav tried a few different things. I use japanese ... there a way to check that? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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389 views

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java - Printing out ArrayList with toString

When I create an ArrayList object and add other objects to it, printing out the ArrayList object will print ... the String memory reference? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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204 views

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java - Trying to parse html hidden by javascript

I've created a simple java script that used Jsoup to parse a page of data. The site creators have changed the ... the data just using my script? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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416 views

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java - How to use multiple buttons (one on each line) for JSP page using Struts2

I don't really know how to title my question, but I have a JSP page with a table displaying elements from a ... pretty new to Struts2 still... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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208 views

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java - More info on Cloud Endpoints return types

According to the documentation, the return value type cannot be simple type such as String or int. The return value needs ... or is it a bug? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - What is the most efficient way to wait for a page element (xpath) to show up in Selenium Webdriver?

I am using Java and Selenium Webdriver in order to test the functionalities of a single page web application. For ... for your time and help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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705 views

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java - Spring WebClient - how to access response body in case of HTTP errors (4xx, 5xx)?

I want to re-throw my exception from my "Database" REST API to my "Backend" REST API but I lose the original ... 't find any answer on internet. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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149 views

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java - Custom HashMap Code Issue

I have following code, where I used HashMap (using two parallel arrays) for storing key-value pairs (key can have multiple ... " + e); } } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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490 views

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java - 404 error when running Jersey web app on Tomcat 7 in Eclipse

Trying to create a simple RESTful web service using Jersey and deploying it on Tomcat 7. Since I'm new to ... </project.build.sourceEncoding> </properties> </project> See Questio...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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