Recent questions tagged Java

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java - Exception in thread "main" org.eclipse.swt.SWTError: XPCOM error 0x80004005 in swt.mozilla

following my SWT code which use Mozilla browser but it gives me an error xpcomm error 0x80004005. import java. ... problem. 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 - How to create channel pool in netty?

I am creating channel using this sample code: EventLoopGroup group = new NioEventLoopGroup(); try { Bootstrap b = new ... I am using netty 4.0 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 - Retain getChildFragmentManager navigation stack after removing and re-adding fragment

I have activity: `<RelativeLayout> <FrameLayout android:id="@+id/container" android:layout_width="match_parent" ... a brilliant day, Konstantin 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 - Using HttpProxy to connect to a host with preemtive authentication

I am using HttpClient to connect to a host which requires BasicAUTH. But the proxy doesn't require any ... credentials available 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 - How to parse JSON array from file?

I have JSON from file. { "from_excel":[ { "solution":"Fisrt", "num":"1" }, { "solution":"Second" ... = obj.getJSONArray("from_excel"); get 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 - How to use JAXB annotations at runtime

I have the following bean class @XmlRootElement(name = "book") //Optional @XmlType(propOrder = {"name" }) public class ... time.how can i do 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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java - How can I convert a date in YYYYMMDDHHMMSS format to epoch or unix time?

EDIT: I have edited my question to include more information, I have tried many ways to do this already, asking ... Frontend: 01/05/2014) 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 - LocationManager and jumping coordinates

Take a look at this image. You see that some how LocationManager gives weird coordinates. It looks like they jump. ... }; return aRunnable; } } 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 - Getting High Resolution Image from JPanel

Suppose I have a JPanel Called panel, and already with a paintComponent, I drew some shapes like rectangles. I ... , and appreciate any 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 - Spring boot Rest api with Spring Kafka

I have designed a Spring boot REST API ADD and GET method @RestController("ProductV1Controller") public class ... API with Spring kafka. 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 - Using PrinterJob to print an Image (Graphics2D)

Is there a way I can rig a PrinterJob in Java to NOT actually print to a printer so that I can get the ... source that'll explain a better way. 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 gracefully stop consuming messages with @RabbitListener

Is there a way to gracefully stop a ListenerContainer, and its associated Consumers. What I'm trying to ... scoped List "canceledConsumers". 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 - Convert a 2D array of doubles to a BufferedImage

I've got a two-dimensional array of doubles which is filtered values of an image. I want to convert this ... the initial gray scaled 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 - Kafka 0.8.2.2 - Unable to publish messages

We have written a java client for publishing message to kafka. The code is as shown below Properties props = new ... for a while... 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 - How to handle several DB schemas with Hibernate?

In one of my projects, I have an application that manages several clients (or customer if you prefer). For each of ... in the best case ;) ). 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 use jsch with ProxyCommands for portforwarding

I want to ssh to a machine which is behind a proxy and do a portforwarding after that in my java program ... in this case unfortunately. 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 - Oracle Connection Pool Class

I want to setup a connection pool for a Oracle DB in a Helper class. public class DbConnection { // Data source for ... (); ... conn.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 - MySQL connection timeout

I'm running program at apache tomcat server, that should be on permanently, but every morning(the client part isn ... this? 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 - Getting org.hibernate.exception.JDBCConnectionException: could not execute query even through JNDI

I use Struts2+JSP+Tomcat6+Hibernate+Mysql as my J2EE application framework.Following to this topic, I've had the problem ... .xml and the problem seems to be solved: maxActive="-...

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

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java - Handling hyperlink right clicks on a JTextPane

I am trying to detect right clicks on hyperlinks in a JTextPane in my program. There really is nothing on the issue ... null, url); } } } 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 find two elements in an array that sum to k

Suppose you are given an array of unsorted integers as A = {3,4,5,1,4,2} Input : 6 Output : {5,1}, {4,2} How can ... [i]+","+array[i+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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java - Regex for matching Unicode pattern

I am trying to validate a file's content when is uploaded and I am stuck at the Unicode encoding. I am not ... characters after u or U+? 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 - How to find a geographic point between two other points

For my application I have to find the position of a point on Google map knowing only that it's located between 2 ... // set the longitude of X 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 handle dispose in RxJava without InterruptedException

In the below code snipped when dispose() is called, then the emitter thread is interrupted (InterruptedException ... calling onComplete(). 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 - Format a Date and returning a Date, not a String

I need to get the Date of the current time with the following format "yyyy-MM-dd'T'HH:mm:ss" ... static String. I hope that clarifies 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 - Row Level Security implementation in JOOQ

I want to implement oracle row level security kind of feature in Java using JOOQ library Here is an example JOOQ query ... ].Security IN (1,2) 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 Validation Error While Using Custom Converter

I am setting up a form using JSF (I'm pretty new at this) and I am getting a Validation Error: Value ... along. Any help is greatly 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 - Tomcat / jBOSS sessions - where are they usually stored?

Preface: I'm not a java developer. I have a question about Tomcat / jBOSS and other java application ... application servers? Thanks 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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