JAVA QUESTIONS

seems to work fine Advanced search has yet to be implemented in the SDK (since it's still in beta), but it will be added in the coming weeks.The reason why your call doesn't work is because the query method parameter is sent as the "query" URL parame

TAG : java

Date : November 22 2020, 10:38 AM , By : Anne Morbach

How can I check for invalid input and loop until the input is valid?

seems to work fine Let's come up with an sample for you so you can follow as your blueprintfirst, I chose do while loop because you need to ask this question at least once.

TAG : java

Date : November 22 2020, 10:38 AM , By : nightcandle

How to avro binary encode my json string to a byte array?

I wish this help you It seems to be working at least. It can be simplified though: the loops are useless since having more than one object would result in invalid JSON. Also, it could be a good idea to avoid unnecessary parsing of the schema by prepa

TAG : java

Date : November 22 2020, 10:38 AM , By : user2955263

Convert a List<Object> to List String

With these it helps What you're getting back in your query is a List which is expected as per the spec. The first element in your array is the string ar.authorId.firstName and the second is a Long representing count(ar)A String.format should work her

TAG : java

Date : November 22 2020, 10:38 AM , By : user2955253

Multiple wsdl2java goals in pom.xml

I hope this helps you . create two different build profile and invoke mvn twice, once for both profile, or try multiple execution with different configuration as suggested here

TAG : java

Date : November 22 2020, 10:38 AM , By : stuartw

How does java source code ultimately interact with files?

I think the issue was by ths following , The InputStream and OutputStream classes do not provide any implementation themselves. They both are abstract classes that require derived classes to provide an implementation. For example, the read() method o

TAG : java

Date : November 22 2020, 10:38 AM , By : user2955222

Change image layout and position from java code

it should still fix some issue For setting image size create a layoutParams , If your imageView parent is a LinearLayout so you should do this :

TAG : java

Date : November 22 2020, 10:38 AM , By : user2955199

Spring data findByStartDateBetween doesn't work

I wish this help you Solved this problem. I wrote custom query, important is not forget to use @Param. This is what i got

TAG : java

Date : November 22 2020, 10:38 AM , By : 권현오

File upload not uploaded to server folder

I wish this helpful for you This just worked fine. The problem was is that the path is uploading the file to another.So this code is working:

TAG : java

Date : November 22 2020, 10:38 AM , By : Luke W Sherry

Is there any benefit to using Math.Floor over explicit integer casting?

seems to work fine Yes, for negative numbers, this works in the opposite way.Example (using Mono's C interactive shell csharp):

TAG : java

Date : November 22 2020, 10:38 AM , By : user2955101

ListView - change items from 1 to 2 lines

fixed the issue. Will look into that further How can I modify the code below so that each item has two lines instead of one? I want the code in the mSample section the same layout as I've posted so please do not inappropriately modify it unless it is

TAG : java

Date : November 22 2020, 10:33 AM , By : user2955050

Why is TestContext.getInstance() is null in beforeTestClass and afterTestClass methods in TestExecutionListener?

around this issue This question is related to 10184602. Please see the discussion there for further details.But to answer your question...

TAG : java

Date : November 22 2020, 10:33 AM , By : para

How to create a new JFrame with dynamic JLabels & JButtons without encountering NullPointerException?

Any of those help When you create an array, it creates n number of empty/uninitialised slotsSo when you do something like...

TAG : java

Date : November 22 2020, 10:33 AM , By : Rincy Raphael

Spring transactions with catched Exceptions

This might help you I solved my 2 problems this way: created another @Service class and moved method_B() into it. I've annotated this class as @Transactional. Now the method method_A() looks like this:

TAG : java

Date : November 22 2020, 10:33 AM , By : sobey

Removing empty items from a JList

Any of those help I have coded a simply to do list program which adds text the user inputs through a JInputDialog (for example: "go grocery shopping") to a JList. The program is running fine, but I thought I would try to prevent the user from pressin

TAG : java

Date : November 22 2020, 10:33 AM , By : zanhero

RuntimeException Handling By Creating Custom Exception

this will help Custom RuntimeException class is not instance of Custom Exception class. But RuntimeException is instance of Exception. Why??? , Why ABCRuntimeException is not instance of ABCException.

TAG : java

Date : November 22 2020, 10:33 AM , By : Marvin L Eason

How do I use a custom renamer with FernFlower?

it should still fix some issue First, you need to add your custre.jar into the classpath. Then you need to specify the custom renamer class to FernFlower:

TAG : java

Date : November 22 2020, 10:33 AM , By : user2954939

Substring function not yielding desired result

wish help you to fix your issue I am currently working on the following program, trying to change an ArrayList of Double to a String one and then display the substring(3,11) of each element of the String Array.

TAG : java

Date : November 22 2020, 10:33 AM , By : William Joe Baldwin

Move Item in LinkedHashMap

around this issue It you want to keep the same Map instance, you can do it in 3 lines like this.

TAG : java

Date : November 22 2020, 10:33 AM , By : pasanacm

Java proguard keep name of field and method that have FXML Annotation

help you fix your problem i need to keep method and field name that have the @FXML annotation,

TAG : java

Date : November 22 2020, 10:33 AM , By : user2954911

Assigning null to an object in the linked list gives error

I wish this helpful for you You are assigning null to temp.previous.next, but nowhere do you check that temp.previous is not null.Further, you initialize temp with first, which presumably (being "first") has no previous node - ie temp.previous would

TAG : java

Date : November 22 2020, 10:33 AM , By : user2954891

text classifier with weka: how to correctly train a classifier issue

With these it helps It seems like you changed the code from the website you referenced in some crucial points, but not in a good way. I'll try to draft what you're trying to do and what mistakes I've found.What you (probably) wanted to do in extractF

TAG : java

Date : November 22 2020, 10:33 AM , By : dcr_lena

Jaxb - Ignore unknown Attributes

hop of those help? By default a JAXB implementation will ignore unknown elements. If it is throwing an exception the default ValidationEventHandler has been replaced on the Unmarshaller. You will need to replace the one that with one that is less sen

TAG : java

Date : November 22 2020, 10:33 AM , By : Jessica

GWT upload form causing browser back to freeze page in Chrome

seems to work fine When you create a new FormPanel it creates as well an Frame in order to send the output of the form to it when it is submitted and not change the current page.The problem is that the browser puts the focus on this iframe, happening

TAG : java

Date : November 22 2020, 10:33 AM , By : user2954815

What's the simplest way to create a scope within a method?

hop of those help? I'm not looking for best practice, so bad practices and hacks are acceptable for this case. , A new scope can be made with { ... }:

TAG : java

Date : November 22 2020, 10:33 AM , By : user2954798

NullPointerException even when variables are not null

I hope this helps . I'm currently designing a program to simulate an airport. I ran into a problem and I've already tried my best to figure out the problem and posting to this site was my final resort. , The problem lies in the second if statement

TAG : java

Date : November 22 2020, 10:33 AM , By : niccoloman2

Transmitting data from another thread, slow serial link with Java and RXTX library

This might help you (a small caveat: I haven't used gnu.io on the raspberry pi)First, to isolate the problem, I would put a fairly long sleep in the transmitter thread, after this.out.write... to verify that the problem is not waiting for the serial

TAG : java

Date : November 22 2020, 10:31 AM , By : Erik Roxas Pulmares

Spring @Transactional in an Aspect (AOP)

I wish did fix the issue. In Spring, @Transactional works by creating a proxy of your class (either a Java or cglib proxy) and intercepting the annotated method. This means that @Transactional doesn't work if you are calling the annotated method from

TAG : java

Date : November 22 2020, 10:31 AM , By : shahrouz mohaghegh

download only first N bytes from file on web JAVA Android

I wish this helpful for you I want download only first 3 bytes of file from web, but can't do that.

TAG : java

Date : November 22 2020, 10:31 AM , By : user2954714

Using DB2 Sequence in Java Prepared Statement

will be helpful for those in need It's to easy, just get the sequence like you get a result set with executeQuery() method. Then the select statement is:

TAG : java

Date : November 22 2020, 10:31 AM , By : user2954710

How to get root of my WATIR project?

I think the issue was by ths following , Ruby's File class has several different methods that are useful for what you're trying to do, so read the documentation for absolute_path, expand_path, realdirpath and realpath.I'd recommend starting with abso

TAG : java

Date : November 22 2020, 10:31 AM , By : Andre

multithreading to add image into surface view

I hope this helps you . I don't exactly know what is your issue but regarding to I don't know how to add another thread so that it can contribute to the view of the current activity. you can create a new thread easily with a nested class...simply cal

TAG : java

Date : November 22 2020, 10:31 AM , By : hainam1610

Why does this program involving a generic interface method compile?

To fix the issue you can do This is a surprisingly deep question. The Java Language Specification writes:An instance method mC declared in or inherited by class C, overrides from C another method mA declared in class A, iff all of the following are t

TAG : java

Date : November 22 2020, 10:31 AM , By : Karen Ho

lockNow() in broadcast receiver

it should still fix some issue Either lockactivity or mdevicepolicymanager is null. This is not surprising, as your process may well have been terminated before the BroadcastReceiver got control.Static data members are only a cache. Do not rely upon

TAG : java

Date : November 22 2020, 10:31 AM , By : Kimjue Soon

Error ~ parse.com push notification android?

hop of those help? 1) You should check your Eclipse project's libs folder. Possibly you are missing the latest bolts jar file. This is part and parcel of the zip that contains the parse lib files. 2) Unfortunately, the official tutorials are somewhat

TAG : java

Date : November 22 2020, 10:31 AM , By : SpicyBBQ

cast on object of type superclass returns object of type subclass in java

wish helps you This is two questions for the price of one. (1) Why do we get the implementation from class B, and (2) why do we get the version of the method with the parameter of type A.For question (1), the thing to remember is that the class of an

TAG : java

Date : November 22 2020, 10:31 AM , By : Bullfrog

AsyncContext response does not match original incoming request?

With these it helps I've figured this one out. The request/responses are indeed being recycled, so by hanging on to the response assigned to the AsyncContext, I was writing out to a response that was associated with a different request.Calling startA

TAG : java

Date : November 22 2020, 10:31 AM , By : David K

Iteration over a ListStore in Java Gxt

should help you out As the javadoc shows List Store does not implement Iterable. So you cannot iterate over it using a for each loop.Just use the getAll() method of List Store which returns you a java.util.List which properly implements Iterable.

TAG : java

Date : November 22 2020, 10:31 AM , By : Duncan

Would a blank Java security policy file be the most restrictive?

should help you out Yes, a security policy that grants no permissions is the most restrictive policy you can define with the standard Java Security Manager, and would prevent any code running in that JVM from doing anything that requires a security p

TAG : java

Date : November 22 2020, 10:31 AM , By : user2954538

Grouping XML children together with XPath in Java

this will help You can't use a single XPath 1.0 expression to rearrange nodes into groups.What you can do is actually select the Flt970 elements, iterate over those, and grab the elements inside them:

TAG : java

Date : November 22 2020, 10:31 AM , By : user2954536

Apache Storm bolt possibly timing out

this will help That time (300 seconds) means that once a tuple is emitted by a spout, the topology has 300 seconds to process that tuple and all subsequent tuples that ripple through the topology (through the three bolts) as a result of that tuple.If

TAG : java

Date : November 22 2020, 10:31 AM , By : user2954534

onActivityResult byte[] data returning null no matter how large the image

Does that help I think in the cropper class,before finish() you should create a new instance of Intent class instead of obtaining one by calling getintent().Ex: Intent intent = new Intent(); intent.putExtra ()....

TAG : java

Date : November 22 2020, 10:31 AM , By : user2954491

see the content of a .bson file using java

Hope that helps You can easily read/parse a bson file in Java using a BSONDecoder instance such as BasicBSONDecoder or DefaultBSONDecoder. These classes are included in mongo-java-driver.Here's a simple example of a Java implementation of bsondump.

TAG : java

Date : November 22 2020, 10:31 AM , By : user2954478

Websphere httpclient NoSuchMethodError org.apache.http.conn.Scheme

may help you . You need both settings - isolated shared library and PARENT_LAST classloader setting to use your own httpclient libraries.PARENT_LAST is required to override classes provided by the server.

TAG : java

Date : November 22 2020, 10:31 AM , By : TehHaze13

Client-server application in Java

like below fixes the issue Initialize your ObjectOutputStream before your ObjectInputSteam on your server.When you initialize an ObjectInputStream, it waits for "header" data. Your server is waiting for that header data. You need to initialize your O

TAG : java

Date : November 22 2020, 10:31 AM , By : user2954453

What is the best way to print a multidimensional array in java?

hope this fix your issue You'll need to iterate through it.The easiest way to do so is to use the provided Arrays.deepToString() which searches for arrays within the array. Note that it, like Arrays.toString(), is only available in Java 1.5+ although

TAG : java

Date : November 22 2020, 01:01 AM , By : colbradley

How to adjust graphics on Swing progress indicator?

I wish did fix the issue. One problem I see is that the code is setting the composite in the wrong place in the loop. It works, but as you've discovered, it's difficult to maintain or change.g2.setComposite is being called at the end of the loop. Thi

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954436

Pdf Compression using java

I think the issue was by ths following , What you want to do should be able to be achieved by simply running a bash script, which is pretty simple. Also it happens that someone has asked that question before so that answer should in turn answer yours

TAG : java

Date : November 22 2020, 01:01 AM , By : orla4eigner

Junit Testing for the enum class

I hope this helps you . , This you need to supply yourself

TAG : java

Date : November 22 2020, 01:01 AM , By : Joe

Synchronization on an object retrieved via reflection

help you fix your problem There are some caveats, but the answer is "yes". An object is an object, no matter how you get the reference. If you synchronize on the reference, you are using the same lock as everyone else that synchronizes on the referen

TAG : java

Date : November 22 2020, 01:01 AM , By : Ruben Pavão

Finding all web services in java web project (wsdl)

I wish this help you looking at the wsdls seems reasonable. Also, look in the web.xml to see that the Web service servlet is defined there.

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954411

Resteasy Bean Validation Not Being Invoked, again

hop of those help? I believe, but not 100% sure, that the issue is that you're missing @Valid on the MyBean parameter. I would also recommend to make it a separate class, rather than a static class.Per the spec, validation constraints on methods wher

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954402

Increase session some value

I think the issue was by ths following , because you put 1 every time, you need to read its value and then incrementchange

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954387

Selenium webdriver get text of adjacent column in same row by matching text from other column

wish help you to fix your issue I am writing integration tests for an asp.net mvc website using Selenium Webdriver. I am using C but answers in C or Java would be appreciated. I have attached the html table and the generated html code. , Below fixed

TAG : java

Date : November 22 2020, 01:01 AM , By : Gaby

How to change log level of userlogs in Hadoop 2?

fixed the issue. Will look into that further The actual answer was to set yarn.app.mapreduce.am.log.level to the level you need, but, crucially, it needs to be set in the Hadoop job configuration at submission time. It cannot be set on the cluster gl

TAG : java

Date : November 22 2020, 01:01 AM , By : Alihuseyn Gulmammado

Reuse Nashorn ScriptEngine in Servlet

it should still fix some issue In javax.script.ScriptEngineFactory there is a method getParameter(String key).With the special key THREADING you get threading information for this specific engine factory.

TAG : java

Date : November 22 2020, 01:01 AM , By : Prateek Madhikar

How to tweak c3po & mysql tandem for performance?

help you fix your problem Make sure you define a preferredTestQuery, for instance SELECT 1.From http://www.mchange.com/projects/c3p0/preferredTestQuery

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954350

Calling handler.removeCallbacks from onDeleted method in a widget throws a nullpointerexception

To fix this issue The problem is that you can't depend on the same instance of your widget being called by Android each time, and so keeping non-static fields in your widget provider is a problem. An easy solution would be to use static fields for ha

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954308

ksoap2 v prefixo to any other prefix

To fix this issue As You may see in: https://github.com/mosabua/ksoap2-android/blob/master/ksoap2-base/src/main/java/org/ksoap2/SoapEnvelope.javawriting method defines prefixes as string constants (code copy from class SoapEnvelope, see provided link

TAG : java

Date : November 22 2020, 01:01 AM , By : Mansun

conditional Operator ? : type evaluation

may help you . Java only allows assignments and calls where a statement is expected, not arbitrary expressions.From section 14.8 of the JLS:

TAG : java

Date : November 22 2020, 01:01 AM , By : maznoum