Recent questions tagged JAVA

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I want to create a semi-transparent JPanel. I've done it by simply using RGBA value of color constructor but ... contentPane.add(panel_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 - High Performance JMS Messaging

I read slides from this year's UberConf and one of the speakers is making the argument that Spring JMS adds a ... . why go slower?!?)? 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 propagate struts2 ActionErrors between different action classes?

If I have an action where the result is a redirectAction to another action in a different class, is it possible ... > </action> </package> 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 - JUnit test class order

I have a java app with maven. Junit for tests, with failsafe and surefire plugins. I have more than 2000 ... begining of the verify process? 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 - Reconnecting JMS listener to JBossMQ

We have a Java listener that reads text messages off of a queue in JBossMQ. If we have to reboot JBoss, ... will be greatly appreciated. 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 - JTree with checkboxes

I need to add checkboxes to a JTree. A custom TreeCellRenderer/TreeCellEditor seems like the right approach. So far ... my own checkbox tree) 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 - StateListDrawable to switch colorfilters

I want to create custom buttons to use in a TabHost. I haven been trying to just use the same image ... so any help would be 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 - JavaFX 2.0+ WebView /WebEngine render web page to an image

I'm looking for a way to load up a page and save the rendering as an image just as you would do with CutyCapt ( ... /2011/05/maps-in-javafx-2-0/ 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 - How do I get a variable in another activity?

How do I access variable value in another activity. In my example I have a string variable item which ... class AgAppMenu extends Activity { 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 - Encode and Decode rfc2396 URLs

What is the best way to encode URL strings such that they are rfc2396 compliant and to decode a rfc2396 ... encode HTML form parameter data. 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 - AudioTrack in streaming mode MODE_STREAMING

I need to stream PCM data generated at runtime. So I have a thread with a loop public void run() { while(.. ... size up to 100k with no 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 - Is there a standard way to enable JSR 303 Bean Validation using annotated method arguments

I've been looking a around for a while now with no luck. I'n not using Spring MVC but still ... enable input validation for annotated beans? 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 - HTTP digest authentication with HttpUrlConnection

I am trying to connect to the Tomcat Web Server on my machine using a digest authentication. I am using ... . Thank you 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 - Android: NAT Traversal?

It appears to me that newer Android devices run behind a NAT, where the local address is an internal carrier ... solutions anyone has to offer! 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 multi-thread consumer in kafka 0.9.0?

The doc of kafka give an approach about with following describes: One Consumer Per Thread:A simple option is to ... mutli-thread What's 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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286 views

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java - Setting the JAVA_HOME environment variable in Ubuntu

I'm pretty new on ubuntu, at some point in the terminal I'm running: mortar local:illustrate pigscripts ... my JAVA_HOME environment variable? 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 - When is a Full GC triggered?

As per my understanding: Minor GC a GC that happens in the young gen is usually called Minor because it ... collectors are doing their part? 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 - EclipseLink JPA `@PreUpdate` call not persisting

I ran into some similar questions on StackOverflow, tried the solutions, but did not find an answer. I am using a ... (new Date()); } } 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 - Initializing an Interface?

In a current problem I am having (printing a file to a physical printer in Java) I have been running ... when I reference mydoc exactly? 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 - JPA and aggregate functions. How do I use the result of the query?

I'm new to ORM stuff and I need some help understanding something. Let's assume I have the following standard SQL ... How do I use the 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 - Choose which monitor does a JavaFX window open in

I have two monitors. I have Eclipse open on the second monitor but when I run my JavaFX code, the JavaFX ... they work well on any screen. See Question&Answers more detail:os...

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

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460 views

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java - Pros and cons of using ActionListener vs. MouseListener for capturing clicks on a JButton

I have a JButton, and would like to capture mouse clicks on it. What are the practical and philosophical ... MouseListener on the JButton ? 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 cookies with Struts 2 and Struts

I've got the following (shortened) struts2 action: public class MyAction extends BaseAction implements CookiesAware ... something here? 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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207 views

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java - How to populate dropdown box in Spring MVC

I have been trying to find out how to populate a dropdown box in Spring MVC. There are a few threads out ... /document-revision/list"; } } 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 11g connection reset error

Am seeing the below error while trying to connect to Oracle 11g on Red Hat Linux, 64-bit using ... T4CConnection.logon(T4CConnection.java:366) 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 spring-ldap with ssl

I need to talk to an LDAP server via spring-ldap with SSL, and the other end has a self-signed ... some instructions for setting this up? 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 - Selenium Page Object Reuse

I really like how selenium 2 by convention pushes you towards using PageObjects as POJOs, and then simply using the ... .findElement(by); } } See Question&Answers more detail:os...

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

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213 views

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java - Get database connection from a connection pool

I am refactoring others code. The one thing I notice is that of the manner on how the system is getting a ... I think that is not optimal. See Question&Answers more detail:os...

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

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