Recent questions tagged Java

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java - Replace content of some methods at runtime

I would like to replace the content of some methods at runtime. I know I can use javassist for this but it does ... . Thank you for your 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 8 - Java8 Adding Hours To LocalDateTime Not Working

I tried like below, but in both the cases it is showing same time? What i am doing wrong. LocalDateTime currentTime ... as "After 12 Hours"... 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 error in Spring Boot tests after migrating to JDK 11

I have just migrated to JDK 11 in order to use the latest Java LTS version. If I change the execution ... (TypeCache.java:355) at org.mockito.internal.creation.bytebuddy.T...

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

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java - JNI - "Cannot open include file: 'jni_md.h'"

This sample program is meant to call a native method written in C. Java Code class HelloWorld { private native void ... do I get this 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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java - Logging into a website?( Jsoup)

What is required to log into a website using Jsoup? I believe my code is correct, but I have never ... .followRedirects(true) .execute(); 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 map POJO to several JSON presentation

How to map POJO to several JSON presentation? I am using Jackson. I want something like code below ... libraries could do 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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java - Android SDK : Samba server streaming video to Android using VideoView?

I need play video from samba to android device streaming. I've been look for this question and someone say ... playing video from InputStream ? 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 - Save activity state in android when home button pressed

I am having an issue related to the home key. When I press the home key the current activity gets hidden, ... available in the activity stack. 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 - Painting in a BufferedImage inside Swing

Im working on a paint application written in java and running into a few (more) problems. ... ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayo...

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

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java - How do I convert a RelativeLayout with an Imageview and TextView to a PNG image?

In my Android App Activity, I have a RelativeLayout with one ImageView and a couple of TextViews being ... imageview. Thanks in advance. 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 - JSF ui:include not being rendered properly

I'm implementing a web application using JSF 2.1.8 and I have a problem with the ui:include tag. I have ... View Scope. Any idea about 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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444 views

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java - Clicking button on second activity got error performing 'single click' or 'scroll to' on view

Clicking a button in Espresso test got problem. Let's say I have two activities "Activity1" and "Activity2". Click ... , has-links=false}" at 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 - Issue in checking server certificate in checkServerTrusted

I am referring Validate X.509 certificate against CA in Java this post. My implementation of checkServerTrusted look like ... I am 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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287 views

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java - Combination of Spring Cloud and Orchestration Tools Like Docker Swarm and Kubernetes

I have a cloud-native application, which is implemented using Spring Cloud Netflix. So, in my application, I'm ... . Thank you for reading! 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 - Get number of Home screens in Android?

I'm making a Live wallpaper for Android, and I want it scroll as user scroll the home screen. I can do ... the number of home screen? 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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297 views

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java - Store binary sequence in byte array?

I need to store a couple binary sequences that are 16 bits in length into a byte array (of length 2). The one ... in a byte array of length two? 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 - JavaSound mixer with both Port(s) and DataLine(s)?

The diagrms in the JavaSound API Programmer's Guide appear to imply (pp. 19-20) that a Mixer can in ... am I misinterpreting the guide)? 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 - Adding components into JPanel inside a JFrame

Since im a beginner and i don't want to get involved with the layout managers, i was simply adding a JPanel into ... .. What am i missing 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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327 views

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java - Converting JSON to XML and vice versa using Jackson API and JAXB Annotations

I'm trying to write a code which can take either XML or JSON input and output JSON or XML respectively. I.e, ... anyone help me out with 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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263 views

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java - How to keep an image within layout with drag and drop

I have the following XML: <FrameLayout android:layout_width="match_parent" android:layout_height="match_parent" android: ... main(Native Method) See Question&Answers more detail:os...

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

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798 views

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java - How to set cell background color (JavaFX, tableview)

I have TableView which is used for displaying data made from CostDataRow objects. The most of cells in table view ... self. Thanks for 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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366 views

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java - Using BouncyCastle's ChaCha for file encryption

I'm hoping to encrypt a few files using ChaCha, so I wonder if it's appropriate to use ... ChaCha implementation for file encryption? See Question&Answers more detail:os...

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

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332 views

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java - How to assign "levels" to vertices of an acyclic directed graph?

I have an acyclic directed graph. I would like to assign levels to each vertex in a manner that guarantees that if the ... (v1,v2) and (v2,v3). See Question&Answers more detail:os...

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

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540 views

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java - moveTaskToBack(true) returns false always

I know this has been asked earlier here & here too.They are not answered properly (or not answered at all). ... if the hardware HOME is pressed 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 - Add Attachment to Jira via REST API

I'm trying to post an attachment o JIRA using the latest REST API. Here's my code: public boolean ... what I'm 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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382 views

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java - How to change the color of the status bar in a codenameone android app?

I would like to change the color of the status bar to match my app background, how can I do 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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315 views

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java - How do I connect to the server socket using the ip address and port number? (client is running on a different machine than server)

Client program public class client implements Runnable { protected static String server_IP = "141.117.57.42"; private ... ", it works perfectly. See Question&Answers more detail:os...

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

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409 views

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java - Wildfly: How to use JAXWS-RI instead of Apache CXF (WebService client only)

My environment is a Maven Project and Wildfly (8.2.1) as Application Server. What I need is to connect wihin ... am fighting for days already... See Question&Answers more detail:os...

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

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