Recent questions tagged Java

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java - Remove square brackets from a String using Regular Expressions?

How would I remove all square brackets ("[]") from a given String in Java? String s = "[abcdefg]"; s ... expression would be used in this 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 Serialize Hibernate Collections Properly?

I'm trying to serialize objects from a database that have been retrieved with Hibernate, and I'm only interested ... annotated object at a time) 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 return excel in Struts2 result?

I am trying to return an Excel sheet from my struts2 action class. I am not sure what result-type should I ... with open/save/cancel dialog box 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: four directional navigation

I've been trying to implement four directional swipe navigation. And I have some questions on how to put ... new to android development. 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 - Process Runtime pass input

I have rsync command to be run in a java program...the problem i am facing is that rsync requires a password ... to the rsync command to work? 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 OnLongClickListener not firing on MapView

I just registered an OnLongClickListener on my my MapView on an Android app I'm currently writing. For some ... the problem?? Any suggestions? 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 a list of classes lambdas

In Java 8 it looks like the lambdas of a class are kept in an array. For example, lets say we have this ... do so, I just like dissecting things 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 - Servlet: Cannot forward after response has been committed

I'm working on servlet page that renders content based on geo-location, and I want to use both sendRedirect and ... ) without this. 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 - Running Chromedriver on Ubuntu Server headlessly

I am using Selenium with Chromedriver in Java (1.8) to do some automated web crawling: System.setProperty("webdriver ... Test.main(Test.java:39) 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 - Dumpsys-like functionality for apk app

I am looking for a solution to access the internal state of our app from adb for debugging purposes. I have ... to implement this in our app. 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 - Maven EAR plugin, rename the app

I have a maven ear module. For example, its artifact ID is MyApp. Maven creates ear archive whith name MyApp- ... options to rename the app? 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 - Injection of touch events using screen driver

Using android-event-injector library, I wrote an application to inject a touch event when some event is triggered. The ... Injected in (170,58) See Question&Answers more detail:os...

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

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474 views

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java - How can I print JasperPrint directly to printer?

I use Java to create report with JasperReports. What i want to do is that user be able to print ... JasperPrinterCreator.getJasperprint(); } } 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 check server is up?

I have got a cluster of two server nodes IBM Websphere Application Server on two different physical machine.Can anybody ... not up and running? 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 - Splitting a simple maths expression with regex

I am trying to have a regular expression split on equations like 1.5+4.2*(5+2) with operators - + * / ... it does not split on the decimal point 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 - Are annotations on a type parameter accessible in runtime?

Java 8 allows things like: public List<@NonNull String> names; But is there a way to access this annotation in ... but it doesn't exist... See Question&Answers more detail:os...

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

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258 views

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java - Eclipse PDE Logging

I want to send the exceptions of my plugin to the Error Log, but I don't want them to be shown in the Eclipse ... Eclipse 3.7.0 and 3.7.1. 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 - Display JSON Array in Table on Jasper Report

I am trying to create a JasperReport using JSONDatasource that is passed by a JAVA function. Here is my JSON ... Person.Contacts"/> </field> See Question&Answers more detail:os...

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

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478 views

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java - non-static method cannot be referenced from a static context

I would like to understand this once and for all. With this please excuse the mass of code pasted below, but I ... ; } return hashPositions; } } 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 - Javassist: creating an interface that extends another interface with generics

I am using javassist in a project and I need to create the following interface at runtime: package com.example; ... would be great! Thanks! Luca See Question&Answers more detail:os...

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

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324 views

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java - How do you tree walk JSON via Jackson 2 JsonNode?

This was a bit of an exercise in frustration made worse by the fact that I couldn't find any answers to this ... t name:value. See answer below. See Question&Answers more detail:os...

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

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184 views

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java - Basic authentication with HTTPS

I'm currently trying to access a URL with both HTTP and HTTPS. The URL that I'm trying to access requires basic ... .java:216) ... 17 more See Question&Answers more detail:os...

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

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320 views

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java - How to get milliseconds from a date picker?

In my project I am saving milliseconds in a sqllite databse, by default I am saving System.currentTimeMillis() ... a long(milliseconds) format? See Question&Answers more detail:os...

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

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354 views

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java - Privileged operations in netbeans mobility

I'm writing a Java ME app that will use privileged operations such as messaging. By default the user is ... prompts the user for permission. 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 - Creating a ConcurrentHashMap that supports "snapshots"

I'm attempting to create a ConcurrentHashMap that supports "snapshots" in order to provide consistent iterators, and am ... are not an option. See Question&Answers more detail:os...

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

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331 views

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java - obtaining an AudioInputStream upto some x bytes from the original (Cutting an Audio File)

How can i read an AudioInputStream upto a particular number of bytes/microsecond position ? For example : AudioInputStream ... to 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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242 views

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java - How to force Selenium to open a link in a new window?

I need to open a link on a webpage in a new Chrome Window. There was already a question but this appears to ... am using java and OS Windows 7 See Question&Answers more detail:os...

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

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251 views

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java - Regex pattern for "contains not only spaces"

Please tell me which pattern I need to use if field must not contain only spaces. See Question&Answers more detail:os...

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

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