Recent questions tagged java

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java - How to exclude older versions of maven dependency and use new version of it?

I am working with Maven project and I have two projects, ProjectA and ProjectB. My ProjectA is a maven library ... there in latest version only. 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 - AdMob Interstitial and error isLoaded must be called on the main UI thread

After user William suggest me to change my code for showing interstitial ad to this @Override public void onCreate ... before :) 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 - Creating Pagination in Spring Data JPA

I am trying to implement pagination feature in Spring Data JPA. I am referring this Blog My Controller contains ... that I can refer?? 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 - ConcurrentHashMap and compound operations

Hashtable and Collections.synchronizedMap are thread safe but still compound operations like if (!map_obj.containsKey(key)) ... on CHM object? 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 confused with == and = in "if" statement

I know that we cant use assignment operator in if statements in java as we use in any other few languages. ... cant be used in if statement. 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 - Remove page from PDF

I'm currently using iText and I'm wondering if there is a way to delete a page from a PDF file? I have opened ... new file; how can I 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 - System.currentTimeMillis(); If I change system time

If I use System.currentTimeMillis() at 00:00 and I get X value. Then I set the clock back one hour, and after one ... it just be X + 3600 * 1000 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 - Aerospike: how do I get record key?

Aerospike client has scanAll method for reading all rows from it's store. I use it in the folowing code: ... wrong? Why userKey is null? 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 create a BufferedImage from a JPanel without rendering in a JFrame?

Is it possible to create a BufferedImage from a JPanel without first rendering it in a JFrame? I've searched everywhere ... ()); return bi; } 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 run a JShell File?

I'd like to run an entire file with JShell like: $ jshell my-jshell-skript.java Where e.g. the content of ... | Goodbye C:JDKsjdk9.0.0.0_x64in> 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 - Wildfly fails to deploy application (FileNotFoundException - Access is Denied)

Wildfly 8.2.0.Final JDK 8 Update 60 Eclipse Mars Update 1 JBoss Tools 4.3.0.Final Windows 10 Recently I upgraded the following ... 2.5.Final.jar:3.2.5.Final] at org.jboss.vfs.Virtu...

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

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java - (How) can I use ServerSocket to listen for UDP instead of TCP traffic?

In my application, there's a module that uses ServerSocket to listen for incoming TCP connections. When I switched ... to use a different class? 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 instruct Maven to use JDK other than the one specified at JAVA_HOME?

Currently my JAVA_HOME is set to a JDK that is 1.4.2. To run Maven 3, I would need 1.5 ... than changing the 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 - Fix for 3D camera to move in the direction it's facing?

The Short Version (TL;DR) I have a Camera attached to a SceneNode and movement works fine as long as the ... method in the previous section. 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 permission of creating database

Hi I have some problems in creating the sqlite database in android. Everything is ok on the emulator, I can create ... ? Thank you very much!! 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 share settings for IntelliJ Idea across different projects?

In the month or so that I've been using IntelliJ, I have one project that I am working in the majority ... than my global .settings directory? 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 - Log4j suddenly stops logging

I'm build a Portlet application deployed to a WebSphere Portal Server running on Linux. Every Portlet WAR uses ... Library in WebSphere Portal. 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 call a stored procedure in JDBC

For homework I have to create a pl/sql stored procedure to add a facutly member to a database CREATE OR REPLACE ... me 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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java - Partial ordered Comparator

How to implement java.util.Comparator that orders its elements according to a partial order relation? For example ... ordering on hashcodes.) 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 turn off log4j warnings?

I'm running a Java app that depends on a few libraries (Axis2) which use log4j. I don't use log4j and don' ... work (I still see the warnings). 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 - TextColor vs TextColorPrimary vs TextColorSecondary

What do each of these encompass in terms of text throughout an app? More specifically, what would changing each ... these terms is 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 - reading body part of a mime multipart

ok so I use .getcontent and receive javax.mail.internet.MimeMultipart@fd13b5 etc. I know i need something like ... generated method stub } } 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 is access restricted to jre6/lib/rt.jar for OperatingSystemMxBean?

I'm having a little trouble with some Java code I'm trying to compile in Eclipse. I keep getting the ... Can anyone help me understand 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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java - Foolproof way of differentiating String and UUID

If I have a string "key:<String || UUID>" is there a way where I can extract the string and differentiate of ... a UUID or the number of bytes? 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 Apache Commons CLI options parser ignore unknown command-line options?

I am writing a Java application that takes command line arguments which are processed using Apache Commons CLI with ... RuntimeException(e); } 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 - AIDL interface can't find import for Parcelable class

My issue seems to be similar to this question and this one but it is a bit different. I am making an ... setter methods below that I removed } 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 webdriver move slider on left side

I want to move slider on left side of slider-bar. However, selenium webdriver moves it to right side but it does ... ("Slider moved"); } } 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 - Difference Between dot operator and brackets in jsp el

I have so class: public class MyClass{ String name; Map map; int [] arrInt; //get set } I create ... between dot operator and bracket operator ? See Question&Answers more detail:os...

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

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