Recent questions tagged java

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java - Error: The package org.apache.commons is not accessible

I have just recently started using Eclipse and am running into problems trying to install external libraries. ... apache math commons library. 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 - randomly displaying circles within gridPane cells in javaFX

I am creating am application that displays circles (of different colors) randomly within each cell of a gridPane. ... thread: launch(args); } 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 - Performance of Cloning (either by Cloneable Interface or Copy Constructor) a object vs Creating a new object in Prototype Pattern

Recently, while learning about Design Patterns, I learnt that the Prototype Pattern is very useful and performance ... Pattern is made used? 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 difference between JAAS and JAAP?

What is the difference between JAAS and JAAP ? JAAS: Java Authentication and Authorization Service JAAP: ?? 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 - Not able to Install TestNG in Eclipse-Kepler

When I tried to Install TestNG on my VM (virtual Machine) getting an error "Unable to read repository at http: ... on the VM Thanks, Kannan 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 - Access resource string by string name in array

I'm trying to get a resource from XML using an array of strings because it's currently in a loop. ... ModicationNames[Current]).getInt(null)), 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 - org.glassfish.jersey upload file with FormDataContentDisposition

http://www.mkyong.com/webservices/jax-rs/file-upload-example-in-jersey/ I'm following this guide and run to ... likely to create a memory leak. 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 can I test the result of a button click that changes the Activity's view asynchronously?

I am trying to write some Activity tests for an app, and one particular scenario that I want to test is ... is complete and the view updates. 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 - JavaFx Image not found in Jar file

I'm trying to generate a runnable jar file of my project which has a JavaFx gui. The project runs greate in ... exception. Thanks for the 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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java - Empty bin,libs,src folders after creating Android project using Javafx android-tools

After creating an Android project using Javafx android-tools, the folders bin, libs, and src were empty! I ... missed something? Please 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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java - Error while trying to get the formula from an Excel workbook with Apache POI

I'm using Apache POI to alter some values in an Excel document and then read the result from different cells. ... } workbook.close(); } } 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 different unit types in JScience library

I'm looking for a way in the JScience library to convert from one unit type to another. Given a factor ... System.out.println(result); } 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 - JLabel setLocation not working?

Here is the code I have written: super("Add contact"); setLayout(new FlowLayout()); IPAddress = new JLabel("IP ... ); setSize(500,150); } 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 - Apache POI - is there a way to create a pivot table where the source table is a SXSSFSheet?

This is the case: I have to use SXSSFWorkbook (Streaming version of XSSFWorkbook) to create my Excel, because I have ... very much!!!!! Stefano 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 - Remove TableView entries when status change

I am having a problem trying to figure out how to make a TableView show the correct data based on each entry ... statusProperty() { return this.status; } public void se...

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

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java - double or float datatype doesn't addup properly in a loop?

In a loop I am adding 0.10 till I reach the desired #, and getting the index. This is my code : private ... float or double. Any ideas !!!! 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 - Moving Image randomly multiple times

I found a nice answer about moving images multiple times here: https://stackoverflow.com/a/21534549/5485718 It's really helpful ... ); } }); } } 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 get text from this html page with jsoup?

I am using this code to retreive the text in the main article on this page. public class HtmlparserExampleActivity ... text in the textview. See Question&Answers more detail:os...

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

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252 views

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java - NullpointerException while invoking SendKeys through Selenium using PageFactory with Page Object

I have three classes. One for getting all elements from the Webpage, one for performing actions with those elements ... do I fix this? 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 - Mockito when() doesn't differentiate between child classes

I wrote a test that uses Mockito 1.9.5. I have an HttpGet and an HttpPost which an HttpClient execute, ... help you can provide is appreciated. 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 - Filter a stream of a class using a value of subclass

I have a parent class Company which has a list of Employee objects. I need to create a stream of Parent ... ); but received incompatible types. 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 - Android Jelly bean camera return null URI

I'm trying to use the camera to take pictures in my app, and then crop the taken images. Everything is ... android to resolve this problem ? 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 - Include a library while programming & compiling, but exclude from build, in NetBeans Maven-based project

In NetBeans 8, in a Maven-based project, how does one use a jar while programming but omit from build? I ... on the details and steps needed. 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 - Make HttpURLConnection load web pages with images

Currently I'm using HttpURLConnection for load remote web page and present to my clients (using InputStream to ... to fix it? 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 - What is an anonymous inner class?

When I tried to do some sample on an abstract class in Java I accidentally got some thing like anonymous inner class ... ); } }; } } See Question&Answers more detail:os...

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

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269 views

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java - Why left join on CriteriaQuery doesn't filter results?

I have two entities, User and Roles each one with active boolean parameter and ManyToMany relationship. This ... (typedQuery.getSingleResult()); See Question&Answers more detail:os...

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

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197 views

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java - How to get only recalculated cells from a google spreadsheet via Google spreadsheet API (gdata)

Gdata offers a way to get only changed cells from a google spreadsheet, based on a time stamp. How should I create ... sync it, what time zone? 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 - Logout is not working in Spring Security

I am writing a security application with Spring Security 4.0. As part of that I want to make a logout call. It is ... " value="${_csrf.token}"/> See Question&Answers more detail:os...

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

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