Recent questions tagged Java

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String abc[]={"abc"}; String def[]={}; def=abc; def[0]=def[0]+"changed"; System.out.println(abc[0]); by ... will have to do def = abc.clone(); 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 in junit while mocking

I am new to Junit,Below is the junit code which i am running. package com.de.base.util.general; import static ... help me to solve 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 - Why does changing the hashcode of an object used as a key in a HashMap make a lookup return null?

Consider the following scenario: Object o1 = new Object(); Object o2 = new Object(); HashMap<Object, Object> map ... t the key's hashcode match? 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 - Resolving multipart/form-data request in spring filter

I'm trying to develop my own CSRF filter in Spring MVC 3 (There are some extra trainings that made me do that, ... How can I do 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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286 views

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java - Deploy war through netbeans onto glassfish v3 beta

The same .war file deploys fine onto Glassfish v2.1. I don't know the last time I tried v3, but I ... not helpful in tracking the problem down. 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 - Why lambda IntStream.anyMatch() is 10 slower than naive implementation?

I was recently profiling my code and found one interesting bottleneck in it. Here is benchmark : @BenchmarkMode(Mode. ... some issue with java? 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 construct PrivateKey if you know the curve name & raw private key/point?

Requirement: For a given named-curve, send as little data as you can, so that receiver can construct EC ... (param.getD(), ecDomainParam); 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 - Generate QR codes with custom dot shapes using zxing

I'm writing an application to generate QR codes with custom dot shapes. What's the best way to do this ... although the keywords are similar. See Question&Answers more detail:os...

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

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282 views

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java - Geb - IncompatibleClassChangeError

I'm just starting out with Geb and am encountering this error when inputting sample code from the Book of Geb: ... .... Any ideas? 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 - Changing the elements in a set changes the 'equals' semantics

Imagine that we have this piece of code. public class HashAddAfter { private class A { public int value; public ... . What do you think? See Question&Answers more detail:os...

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

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298 views

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java - How can I send HTTP Basic Authentication headers in Android?

I am not sure how to send HTTP Auth headers. I have the following HttpClient to get requests, but not sure ... (JSONObject json) { } } 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 - Cannot read configmap with name: [xx] in namespace ['default'] Ignoring

New to k8s. Trying to read values from profile based config map. My configmap exists in default namespace. ... someone share some inputs here. See Question&Answers more detail:os...

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

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274 views

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java - In Swing, how to apply KeyListener on no specific component

Generally we apply the Key Listener on specific components like text field, password fields, etc. But I would like ... to be applicable to all. See Question&Answers more detail:os...

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

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229 views

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java - Using Spring in standalone apps

I am learning Spring and I have a question regarding how you use it in standalone applications (and also when ... in standalone and web apps? See Question&Answers more detail:os...

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

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297 views

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java - How to upload a file by transfering the file from the local machine to the remote web server using Selenium Grid

File Upload with a Selenium Grid: Code import java.net.MalformedURLException; import java.net.URL; import java. ... Debug: Debug with Firefox See Question&Answers more detail:os...

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

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487 views

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java - Unable to convert .jks to .pkcs12: excess private key

Update Dec 30, 2017 - 4: I've managed to unpack .jks file and extract key and certs from it. To do this I ... CF:BF:FF What am I doing wrong? See Question&Answers more detail:os...

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

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308 views

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java - Deserializing JSON to non-static nested classes using Gson

According to this Gson can deserialize to inner classes. I have the next fragment of JSON string: ... "coordinates ... me where the mistake is? See Question&Answers more detail:os...

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

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373 views

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java - When I add @Async, entityManager.flush() will raise an exception

I'm using Spring framework. The structure of my project is Controller ?? Service ?? Logic. I added ... -projects/spring-framework/issues/23325 See Question&Answers more detail:os...

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

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265 views

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java - How to start JavaFX 11 application outside IDE?

I downloaded: - OpenJDK 11.0.2 - JavaFX SDK 11.0.2 Both files are extracted to path C:/Program Files/Java/ ... -javafx but I get same error :/ See Question&Answers more detail:os...

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

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290 views

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java - foreign key problem in jdbc

I have two functions: public void Populate_flights() public void Populate_reservations() Flight and reservations are ... FOREIGN_KEY_CHECKS=1"); See Question&Answers more detail:os...

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

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239 views

1 answer

java - Digital Signature SunMSCAPI provider & MS Crypto API

I want to sign file with the SunMSCAPI provider. As public key and signatures needs to be imported using MS ... //result is always false.. See Question&Answers more detail:os...

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

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335 views

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java - RESTlet: How to process multipart/form-data requests?

How do you catch incoming @Post variables when it is a multipart/form-data request? For a regular Post request ... files, just the text fields. See Question&Answers more detail:os...

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

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421 views

1 answer

java - Creating a eclipse plugin with text hover

I would like to make a Eclipse plugin (text editor). I would "read" the text under the cursor and show a ... I'm looking for :) Thanks PKeidel See Question&Answers more detail:os...

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

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581 views

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java - Set the Background Color for JTabbedPane

I am using Nimbus Look and feel. I needs to change the Background color and foreground color of the tab in ... { new TabbedPaneDemo(); } } See Question&Answers more detail:os...

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

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307 views

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java - Change file permissions in DDMS (Android)

I'm trying to test the behavior of my application when it cannot access some files due to missing ... FileExplorer in DDMS perspective? See Question&Answers more detail:os...

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

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385 views

1 answer

java - How to scroll with Appium 1.7.1 using TouchAction

I'm having trouble with scrolling down to a certain element in an iOS and Android app. Since the update from ... Maybe someone can explain it. See Question&Answers more detail:os...

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

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467 views

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java - Compress bitmap to a specific byte size in Android

Is there a way to compress Bitmap to a specific byte size? For example, 1.5MB. The matter is all the ... go right direction from the beginning. See Question&Answers more detail:os...

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

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238 views

1 answer

java - Maven and Eclipse problem - looking for resources

I have a problem, that maven is looking for resources inside of Eclipse installation folder. It is saying: This ... it is posted here down. See Question&Answers more detail:os...

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

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