Recent questions tagged JAVA

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java - How to use <sec:authorize access="hasRole('ROLES)"> for checking multiple Roles?

I want to display some content conditionally based on Roles using Spring Security JSP taglibs. But in Spring ... is deprecated. 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 - How does one intercept a request during the Jersey lifecycle?

I've used Jersey for the better part of a year now and have just stumbled upon a problem to which I ... need to pass request contexts around. 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 - print spaces with String.format()

how I can rewrite this: for (int i = 0; i < numberOfSpaces; i++) { System.out.print(" "); } ... possible but the javadoc is a bit confusing. 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 - Hibernate 4.1Final alternative for Hibernate.STRING

I was using Hibernate 3.6 where I have a code like this: list =getSession().createSQLQuery(queryString) .addScalar ... please help me thank you. 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 write JPQL SELECT with embedded id?

I'm using Toplink essentials (JPA) + GlassFish v3 + NetBean 6.9 I have one table with composite primary key: ... ] of class [entity.Machine]. 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 - I want to convert an output stream into String object

I want to convert an OutputStream into a String object. I am having an OutputStream object returned after marshalling the JAXB 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 - Mocking a class vs. mocking its interface

For a unit test, I need to mock several dependencies. One of the dependencies is a class which implements ... would be the preferred approach? 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 - Calendar add() vs roll() when do we use it?

I know add() adds the specified (signed) amount of time to the given time field, based on the calendar's ... 1 Joda answers are not accepted! 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't load IA 32-bit .dll on a AMD 64-bit platform

I am trying to use SVMLight from Java, using the JNI wrapper on this page: static { System.loadLibrary("lib/ ... the C source code available. 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 do an array of hashmaps?

This is what I tried to do, but it gives me a warning: HashMap<String, String>[] responseArray = new ... conversion to conform to HashMap[ ] 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 - Eclipse JUnit - possible causes of seeing "initializationError" in Eclipse window

I know this question is pretty general but I haven't found any hints on why this error may show up. What are ... (Unknown Source) ... 25 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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java - What is the eclipse shortcut for auto-generating a default and field constructor?

I had a look at: Eclipse-Shortcuts, but I found nothing for generating a constructor. Whats the shortcut for generating a standard constructor? 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 the JVM slow to start?

What exactly makes the JVM (in particular, Sun's implementation) slow to get running compared to other runtimes ... for the first 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 - Spring: get all Beans of certain interface AND type

In my Spring Boot application, suppose I have interface in Java: public interface MyFilter<E extends SomeDataInterface> ... the syntax for 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 - What is Mojarra?

How is Mojarra different from Sun's JSF Reference Implemenation? Is it just a later version? Is it simply a rename? 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 - Print the contents of a Bundle to Logcat?

Is there an easy way to print the contents of a Bundle to Logcat if you can't remember the names of all the ... the key names would be cool)? See Question&Answers more detail:os...

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

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326 views

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java - How to generate time based UUIDs?

I want to generate time-based universally unique identifier (UUID) in Java. The method java.util.UUID.randomUUID() ... and I am missing 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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360 views

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java - Maven cannot resolve dependency for module in same multi-module project

When running commands such as mvn dependency:build-classpath or mvn exec:java Maven is unable to resolve a dependency of ... > <name>B</name> See Question&Answers more detail:os...

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

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159 views

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java - Android SeekBar Minimum Value

How to define a SeekBar's minimum value? Is this done in the XML layout or do I need to define it ... minimum value from 0 to 0.2 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 - Remove all elements from a List after a particular index

Is there any convenient way in List/ArrayList by which we can remove all elements of a List after a particular ... elements now (counts from 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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263 views

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java - Why does Math.floor return a double?

Official Javadoc says that Math.floor() returns a double that is "equal to a mathematical integer", but then why shouldn't it return an int? See Question&Answers more detail:os...

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

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176 views

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java - Http cookie store in Android

I am developing an Android client for the site with authorization. I have a post method. Example my code: public ... ; } How to keep cookies? 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 - Issues with SHA1 hash implementation in Android

I have two small snippets for calculating SHA1. One is very fast but it seems that it isn't correct and ... because I need the performance. See Question&Answers more detail:os...

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

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264 views

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java - How can I put titles in ViewPager using fragments?

I am using ViewPager to allow user to swipe between fragments. How can I add a the title of each fragment ... I cannot get titles working now. 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 - Hostname in certificate didn't match?

I try to connect to a server with a self-signed certificate. I use this code to accept all certificates. public ... what could be the problem? See Question&Answers more detail:os...

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

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643 views

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java - How to obtain Pinterest V3 API-KEY or access_token

I am trying to fetch Pinterest data, which would be the public info of the user(follower count etc), and all ... am asking about the V3 api. See Question&Answers more detail:os...

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

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336 views

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java - How to print from web application to receipt printer?

I was asked by my client to print receipts on an Epson TM U220 (http://pos.epson.com/products/TM-U220.htm) ... am using Grails for my web apps. See Question&Answers more detail:os...

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

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173 views

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java - Spring Boot: ClassNotFoundException when configuring maxUploadSize of CommonMultipartResolver

I'm using Spring Boot for my web application and I'm trying to configure the maxUploadSize of Spring's ... <version>17.0</version> </dependency> <dependency>...

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

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