Recent questions tagged Java

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java - Is there a tool other than ij to look into a local derby database (folder)?

I'm using Derby ij to look into my local Apache Derby database. It's just a folder and I connect to it ... best would be something with a GUI. 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 exactly does Maven Update Project do in Eclipse?

First of all, I am aware of this question, but I am interested in the details which are not provided ... are Maven dependencies copied locally? 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 compare dates in hibernate

In my Data base dates are as 2012-04-09 04:02:53 2012-04-09 04:04:51 2012-04-08 04:04:51, etc, I ... . How can i do it using hibernate criteria. 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 permgen included in -Xmx?

When I say -Xmx=1024m, does this include permgen i.e -XX:MaxPermSize= is taken from these 1024m or it is ... I had believed they were separate. 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 - Split a list into sublists based on a condition with Stream api

I have a specific question. There are some similar questions but these are either with Python, not with Java, or ... with Stream api in Java? 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 temporarily disable a message listener

What would be a nice and good way to temporarily disable a message listener? The problem I want to solve is: A ... don't get any more messages. 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 - "Got different size of tuples and aliases" exception after Spring Boot 2.0.0.RELEASE migration

//imports, etc. @Entity @Table(name = "TSTRANS") @SqlResultSetMappings( { @SqlResultSetMapping(name = TS_TRANS_EMP_STAT ... , during migration? 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 Jersey interceptors to get request body

I am using REST-Jersey in my project. All the POST data is send in JSON format and unmarshalled at ... the interceptor method? Please advice. 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 - Illegal character - CTRL-CHAR

I am getting following exceptopn from webservices: com.ctc.wstx.exc.WstxUnexpectedCharException: Illegal character (( ... removing control char. 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 - Which icon sizes to use with a JFrame's setIconImages() method?

Does anyone know which icon sizes to use with the setIconImages() (PLURAL) method for a jFrame so that my app ... which sizes I should include? 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 HTML-encode in the JSP expression language?

Consider the following piece of JSP: <param name="FlashVars" value="${flashVars}" /> The value of ${flashVars} ... way to get the same 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 - Partially match strings in case of List.contains(String)

I have a List<String> List<String> list = new ArrayList<String>(); list.add("ABCD"); list.add("EFGH"); list ... (faster) way to do this? 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 - Explicitly assigning values to a 2D Array?

I've never done this before and can't find the answer. This may not be the correct data type to use for this, ... I'm barking up the wrong 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 - How to use apostrophe (') in xpath while finding element using webdriver?

I need to use apostrophe (') in my xpath expression which i need to use in finding elements using webdriver i need to ... to hear from 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 - Marked as private warning after changing colour of up arrow

After defining a custom colour for the back arrow in the action bar, a warning is then returned. What can ... com.android.support:appcompat-v7 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 are way to install maven dependencies before maven attempts to resolve them?

I have to unpack some dependencies from a remote location and install them locally. I successfully get ... attempts to resolve dependencies? 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 listen resize event of Stage in JavaFX?

I want to perform some functionality on resize event of form (or Scene or Stage whatever it is). But how can ... resize event of form in JavaFX? 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 - filtering an ArrayList using an object's field

I have an ArrayList which is filled by Objects. My object class called Article which has two fields ; public class ... this code isn't working. 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 programmatically switch tabs using buttonclick in Android

I have been struggling with this for a few days now. I'm trying to switch tabs programmatically upon a button ... history for the error log. 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 instantiante object & call setter on same line?

If I have an Employee class with a default constructor: private String firstName; public Employee(){} and a setter ... ().setFirstName("John"); See Question&Answers more detail:os...

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

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156 views

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java - Args guaranteed to be non-null?

In the following program, if this is executed (e.g. via command line), is args JVM independently guaranteed to not be ... (String[] args) { } } See Question&Answers more detail:os...

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

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182 views

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java - Required field 'client_protocol' is unset

I am using Hive 0.12, and I'm trying the JDBC from apache. When I try to run the code, I get ... client_protocol:null) How can I fix 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 - Pattern.DOTALL with String.replaceAll

I have a multiline HTML document that I am trying to get some stuff from. I'm using java's regex ... Pattern.DOTALL with string.replaceall? 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 FileDialog?

I created an interface and I'd like to add a function that allows user to open a file. I'm using AWT. I ... or a good link that explain 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 - Can HQL Select on the result set of another query?

Can HQL Select on the result set of another query? For example: SELECT COUNT(*) FROM (SELECT * FROM Table) I can ... line 1, column 22 ..." See Question&Answers more detail:os...

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

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203 views

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java - Anonymous inner classes in C#

I'm in the process of writing a C# Wicket implementation in order to deepen my understanding of C# and Wicket. ... like this in idiomatic C#? 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 difference between RxJava 2 Cancellable and Disposable?

I want to create an Observable from view click listener using RxJava 2. I started from the simplest implementation ( ... and which should I use? 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 it possible to change IntelliJ's code generation template for equals() and hashCode()

Is it possible to change the code generation template for equals() and hashCode()? I would like the ... Objects class for theses methods. See Question&Answers more detail:os...

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

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