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JAVA QUESTIONS

How to display ListView in Reverse Order (Latest First on Top)?
How to display ListView in Reverse Order (Latest First on Top)?
I think the issue was by ths following , I want to display the newly added data on top in ListView. But it's getting added to the bottom. , Try this :
TAG : java
Date : November 24 2020, 12:01 PM , By : user3038523
separate the file in fileinputstream input and insert the data into oracle tables
separate the file in fileinputstream input and insert the data into oracle tables
will help you Currently i am reading the file input from where the file ending with 'gz' and processing this input file data into my oracle tables. , You already wrote it :
TAG : java
Date : November 24 2020, 12:01 PM , By : user3038504
How to append a column of data to the end of text file
How to append a column of data to the end of text file
seems to work fine Just read the last field of each line of filename1, append the column value to the line and then write it into filename2:
TAG : java
Date : November 24 2020, 12:01 PM , By : Jaysonnapster
Return ArrayList item instead of boolean
Return ArrayList item instead of boolean
I wish this help you A couple of things. You return too early You return the wrong thing You use recursion for no discernible reason
TAG : java
Date : November 24 2020, 12:01 PM , By : user242862
Remove few elements from a Map of String to List for a specific key
Remove few elements from a Map of String to List for a specific key
it helps some times There is no need of stream for doing this, i prefer using computeIfPresent if key present in Map alter the value else ignore. Don't use Arrays.asList unless you need immutable list because it will not support remove operation
TAG : java
Date : November 24 2020, 05:49 AM , By : user3038448
Load more not working after swipe to refresh
Load more not working after swipe to refresh
it helps some times I have a little problem, I make swipe refresh and load more. but load more doesn't work if I swipe refresh. the data only shows the first page, after that the next page, doesn't come out and load more doesn't work. , In the setLis
TAG : java
Date : November 24 2020, 05:49 AM , By : user3038433
Does a 'z' in a datetime String have different outputs in different locales?
Does a 'z' in a datetime String have different outputs in different locales?
I think the issue was by ths following , I too have experienced ambiguous time zone abbreviations being parsed differently on different JVMs (also when providing a locale, so that is not the only issue). I don't think the exact behaviour is documente
TAG : java
Date : November 24 2020, 05:49 AM , By : user3038312
What I have to modifiy for the 64-bit requirement?
What I have to modifiy for the 64-bit requirement?
This might help you If you have no native (NDK) code, that is you only write Java/Dex code, then you don't need to do anything.If you have native code (or libraries) then you need to supply their 64-bit versions. reference
TAG : java
Date : November 24 2020, 05:49 AM , By : ChuyNadaMas
Updating and deleting from DB using JpaRepository
Updating and deleting from DB using JpaRepository
hope this fix your issue You have all the right set up regarding the cascading:The problem is that you are triggering a native query. This bypasses all the JPA configuration and cascading altogether. Even if you used a JPQL delete without native, thi
TAG : java
Date : November 24 2020, 05:49 AM , By : user3038283
Incompatible types with new class?
Incompatible types with new class?
Hope this helps In the following piece of code, you're using (without knowing it) as reference Android Media Player (android.media.MediaPlayer) instead of your MediaPlayer interface (com.ahmedco.adapter.example2.MediaPlayer).
TAG : java
Date : November 24 2020, 05:49 AM , By : user3038260
How to convert nested for loop with extra command to java stream
How to convert nested for loop with extra command to java stream
will help you flatMap should be used only when you want each element in your stream to transform into multiple elements in the resulting stream. Here, each Message in the original stream correspond to one String in the resulting list, so you should n
TAG : java
Date : November 24 2020, 05:49 AM , By : Rob
Set cookies on successful OAuth2 Authentication in Spring Security OAuth2 implementation
Set cookies on successful OAuth2 Authentication in Spring Security OAuth2 implementation
this one helps. I've done some further digging in the OAuth2ClientAuthenticationProcessingFilter implementation and found the following possible solution.It's possible to plug in a custom SessionAuthenticationStrategy which by default is not implemen
TAG : java
Date : November 24 2020, 05:49 AM , By : user3038243
Groovy - Regex match the string with last char numbers
Groovy - Regex match the string with last char numbers
I wish did fix the issue. You may use Groovy directly to test the whole string against a regex using ==~ operator (it requires a full string match as Stringmatches() in Java does) and make sure you remove square brackets from the regex (as [abc] matc
TAG : java
Date : November 24 2020, 05:48 AM , By : fooj
Problem when splitting an item from array list into a string array
Problem when splitting an item from array list into a string array
I wish this help you [Ljava.lang.String;@ccac396 is not a the string itself, but its location or the location of the string array, respectively. I think you are you printing the whole String[] array, which results in the weird output. Java uses its d
TAG : java
Date : November 24 2020, 05:48 AM , By : user3038173
Check link to know if it is image or not in android/java
Check link to know if it is image or not in android/java
should help you out There is a way you can do it but I'm not sure its the best approach.Code:
TAG : java
Date : November 24 2020, 05:48 AM , By : user3038172
Scala JSR223 script using JMeter/Java context
Scala JSR223 script using JMeter/Java context
this one helps. The core of the issue is that injected bindings are seen by the Scala script engine as having a type of Any. To use the injected bindings you either have to cast them to the appropriate type on every use, or you need to inject them as
TAG : java
Date : November 24 2020, 05:48 AM , By : user3038150
I executed selenium code but an error is appearing
I executed selenium code but an error is appearing
help you fix your problem ElementNotInteractableException is thrown to indicate that although an element is present with in the HTML DOM, it is not in a state that can be interacted with.You should use WebDriverWait with ExpectedCondition.elementToBe
TAG : java
Date : November 24 2020, 05:48 AM , By : Samuel Walters
Why are WebMvcConfigurer override methods not working?
Why are WebMvcConfigurer override methods not working?
may help you . You are working around Spring Boot instead of using it. For starters remove the onStartup method of your Application class. Spring Boot takes care of all of that.
TAG : java
Date : November 24 2020, 05:48 AM , By : isaac
JPA Criteria Specification for ManyToMany
JPA Criteria Specification for ManyToMany
may help you . I had entities Client and Agency with ManyToOne relation, so that table client had column agency_id pointing to table agency, also Client had: , This JPA Criteria specification works fine:
TAG : java
Date : November 24 2020, 05:48 AM , By : user3038060
Mongodb Timestamp Output Format returns "$numberLong" Object when I want to get the unix time in millis
Mongodb Timestamp Output Format returns "$numberLong" Object when I want to get the unix time in millis
I hope this helps . Is it possible to just get the key-value pair instead of the StartTime Object with the $numberLong key?
TAG : java
Date : November 24 2020, 05:48 AM , By : Heather
Is SecureRandom.ints() secure?
Is SecureRandom.ints() secure?
hope this fix your issue Yes, it is secure, as long as nextInt() is secure (for the number of integers retrieved from the stream).According to the documentation of the Randomints() method:
TAG : java
Date : November 24 2020, 05:48 AM , By : user3038014
Using advanced search operators in sending query to saerch engine using restful API
Using advanced search operators in sending query to saerch engine using restful API
will be helpful for those in need The search engine does not treat your query as an exact match phrase, but the default term operator is AND, meaning that all individual terms must appear in the document. Exact-match phrases are rewarded and appear b
TAG : java
Date : November 24 2020, 05:48 AM , By : user3037977
How I can get image Uri from gallery for a long time?
How I can get image Uri from gallery for a long time?
Hope that helps because of this URL refers to a local image and I think will not work if you removed this image or renamed it,you can transform it to base64 and save it in shared preferences or local DB.
TAG : java
Date : November 24 2020, 05:48 AM , By : user3037970
How to send List value in Request Body to Rest Api
How to send List value in Request Body to Rest Api
around this issue Hi i have written a Rest Service to accept List of Long values as input via RequestBody and the code for the same is given below: , Your payload is expected to be a
TAG : java
Date : November 24 2020, 05:48 AM , By : user3037962
How to get the processing kafka topic name dynamically in Flink Kafka Consumer?
How to get the processing kafka topic name dynamically in Flink Kafka Consumer?
fixed the issue. Will look into that further You can implement your own custom KafkaDeserializationSchema, like this:
TAG : java
Date : November 24 2020, 05:48 AM , By : user3037952
How to pass function as parameter from java to kotlin method?
How to pass function as parameter from java to kotlin method?
wish helps you I have a Kotlin Code: , The error message is caused by the code before your:
TAG : java
Date : November 24 2020, 05:48 AM , By : user3037939
Java SWT - Adding buttons to shell
Java SWT - Adding buttons to shell
should help you out I'm trying to create a simple window with a push button using the following code: , Your program should look like this:
TAG : java
Date : November 23 2020, 12:01 PM , By : kondor
How "site" can be input for the viewer? What is "site" in Eclipse API?
How "site" can be input for the viewer? What is "site" in Eclipse API?
help you fix your problem I take it you mean the SampleView generated by the Eclipse examples. In this particular case the view content provider does not actually look at the value passed to setInput so any value would be OK here. I just tested it wi
TAG : java
Date : November 23 2020, 12:01 PM , By : LutzL
"unreported exception IOException; must be caught or declared to be thrown". Have a look on the coding
"unreported exception IOException; must be caught or declared to be thrown". Have a look on the coding
I wish this helpful for you You need to handle the exception for Runtime.getRuntime().exec("calc");.Try this:
TAG : java
Date : November 23 2020, 12:01 PM , By : Bjornih
Google Anlytics in Java: AnalyticsService "application name"
Google Anlytics in Java: AnalyticsService "application name"
I hope this helps . As far as I know you cant use client login (setUserCredentials) with Google Analytics. You need / should use Oauth2 to connect to the Google analytics APIGoogle Oauth2
TAG : java
Date : November 23 2020, 12:01 PM , By : SRK
how to handle error when there is no coordinate to show in arraylist?
how to handle error when there is no coordinate to show in arraylist?
this one helps. You can try to get a lon and lat at first and check them for null, for instance. If they are null, you can show Toast with error.
TAG : java
Date : November 23 2020, 12:01 PM , By : Yatharth Bajaj
When should I use Factory<T> instead of Provider<T>
When should I use Factory<T> instead of Provider<T>
this will help Provider has a very concrete meaning in the system. It is a delegated constructor of a Graph-managed object. Provider has specific guarantees/behaviour and I generally recommend against injecting Provider unless you are supporting some
TAG : java
Date : November 23 2020, 12:01 PM , By : Nishat verma
Why is assigning 'int constant -> byte variable' valid, but 'long constant -> int variable' is not?
Why is assigning 'int constant -> byte variable' valid, but 'long constant -> int variable' is not?
I hope this helps . This is defined in the JLS 5.2 (Assignment conversion):
TAG : java
Date : November 23 2020, 12:01 PM , By : Hâmzâ MöÛddene
Adding Service layer to Web APP to display DB contents on a jsp
Adding Service layer to Web APP to display DB contents on a jsp
should help you out , You will have to create a new Service Class something like this:
TAG : java
Date : November 23 2020, 12:01 PM , By : Kaitlyn Reid
How to fix java.awt.HeadlessException in Jenkins on Linux
How to fix java.awt.HeadlessException in Jenkins on Linux
should help you out These are the steps that rid me of the HeadlessException: Add the Xvnc plugin to Jenkins Install VNC: sudo apt-get update sudo apt-get install vnc4server Make sure Jenkins has a shell: sudo usermod -s /bin/bash jenkins Log in as
TAG : java
Date : November 23 2020, 12:01 PM , By : DonK_Z
Calling custom mongoDB query with spring data fails
Calling custom mongoDB query with spring data fails
may help you . After searching a bit more, i found a solution to my answer, that was not the code problem but actually the configuration problem. For those who face the same problem i will add the solution. After adding repository-impl-postfix="Custo
TAG : java
Date : November 23 2020, 12:01 PM , By : Ruben Tammaro
Reusing visual class created with WindowBuilderPro
Reusing visual class created with WindowBuilderPro
Any of those help I needed to add all the libraries I used in the old project to the build path of the new project.
TAG : java
Date : November 23 2020, 12:01 PM , By : D.J
Is it allowed to have any logging on Android Public release?
Is it allowed to have any logging on Android Public release?
help you fix your problem This is only relevant to removing excessive and development-related logging. There is not a strict ban and it is useful to have some very limited logging as application crash reports provide the Log Cat to you.
TAG : java
Date : November 23 2020, 12:01 PM , By : Fayyaz Ahmed
Cannot pass java.lang.long to com.jacob.activeX.ActiveXComponent.invoke
Cannot pass java.lang.long to com.jacob.activeX.ActiveXComponent.invoke
it helps some times I'm trying to pass java.lang.long variable to com.jacob.activeX.ActiveXComponent.invoke but I get below exception: , The COM long type is 32 bits. Use the JAVA int type.
TAG : java
Date : November 23 2020, 12:01 PM , By : Abdel rachid MECHAKR
Is initialization of objects Thread Safe in Java
Is initialization of objects Thread Safe in Java
Hope this helps As for the status of your current version, it is definitely not thread-safe because concurrent access of myObject will establish a data race.You didn't specify this, but if MyObject is not thread-safe itsef, then your program will not
TAG : java
Date : November 23 2020, 12:01 PM , By : Joey Suan
Save as java file
Save as java file
help you fix your problem I have a , Here the sample of moving file to new directory -
TAG : java
Date : November 23 2020, 12:01 PM , By : Praveena Alluri
JasperReports: filling a report throws an exception “TargetInvocationException”
JasperReports: filling a report throws an exception “TargetInvocationException”
around this issue here problem with tomcat jar and application jar.(might be conflict with jar file).. I have changed my tomcat server form 6 to 8 version and that works fine for me..thanks to all your their time..
TAG : java
Date : November 23 2020, 12:01 PM , By : Oussama Farid
How to insert about 500.000 data rows in table efficiently
How to insert about 500.000 data rows in table efficiently
should help you out Why you went for hand written SQL query ?? If you are writing sql in such a way , you are definitely not getting the fruits of hibernate.Learn Batch Insert Example code for Batch Insert,
TAG : java
Date : November 23 2020, 12:01 PM , By : Mahendiran Selvam
Android Soundboard only one sound at a time
Android Soundboard only one sound at a time
will help you i solved it using a soundpool, there you can also play multiple sounds at the same time. i first initialize it and load sounds i need in the constructor
TAG : java
Date : November 23 2020, 12:01 PM , By : Tetyana Fedirko
Inner forEach in forEach jstl error
Inner forEach in forEach jstl error
Does that help I believe it is because 'package' is a reserved Java keyword. Try renaming it to basically anything else.
TAG : java
Date : November 23 2020, 12:01 PM , By : Jared Burch
Finding the key of HashMap which holds the lowest integer value
Finding the key of HashMap which holds the lowest integer value
fixed the issue. Will look into that further I'm creating an educational game for young students who needs to learn the most common words. On random I pick three words of the list, show them on the screen, play an audio recording of one of the three
TAG : java
Date : November 23 2020, 12:01 PM , By : veera
Time Difference with UTC java
Time Difference with UTC java
seems to work fine When you are setting the hours to Date, java.util.Date object is independent of the concept of TimeZone. Per its javadoc here,
TAG : java
Date : November 23 2020, 12:01 PM , By : Aidan Helmbold
what are prepackaged character stream classes?
what are prepackaged character stream classes?
it helps some times The term is quite vague and doesn't really seem to be defined anywhere, so good question.As best I understand it it means things like FileInputStream, FileOutputStream, ByteArrayOutputStream, etc. Classes that have wrapped up a pa
TAG : java
Date : November 23 2020, 12:01 PM , By : Hasnain Ali
ejb bean instance pool jboss EAP 6.1
ejb bean instance pool jboss EAP 6.1
Does that help Red Hat documentation says
TAG : java
Date : November 23 2020, 12:01 PM , By : mjasantome
Hibernate: Deadlock found when trying to obtain lock
Hibernate: Deadlock found when trying to obtain lock
Does that help Because the deadlocks happen so frequently, it looks like some of the threads of the application are holding locks for an extended period of time. Each thread in the application will use it's own database connection/connections while a
TAG : java
Date : November 22 2020, 12:01 PM , By : Leon Ehrhardt
Obtaining a Spring LocalResolver via RequestContext vs. via Injection?
Obtaining a Spring LocalResolver via RequestContext vs. via Injection?
wish helps you I don't think there are any pitfalls.The RequestContextUtils.getLocaleResolver(HttpServletRequest) is implemented as
TAG : java
Date : November 22 2020, 12:01 PM , By : Ahsan Sohail
Getting error: variable private acces in Component
Getting error: variable private acces in Component
help you fix your problem Your class Gamey extend the JFrame class which in-turn extend the Component class. In the method startGame(), you have used a field called name in this statement.
TAG : java
Date : November 22 2020, 12:01 PM , By : Icon-pc Icon-compute
how to configure maven to add junit 4.10 instead of 3.8 dependency in new project
how to configure maven to add junit 4.10 instead of 3.8 dependency in new project
this will help The junit version is described in archetype that is used to create maven project.You need to either find archetype that will fit your needs, or create your own.
TAG : java
Date : November 22 2020, 12:01 PM , By : PrincessLily
Need locking when call VaadinSession getAttribute in Vaadin 7
Need locking when call VaadinSession getAttribute in Vaadin 7
will be helpful for those in need Adding to the answer by Patton. While I'm not an expert on this topic, I am posting my understanding after a thorough reading of the doc, and reading this post by Roland Krüger. Upshot: Moot Question
TAG : java
Date : November 22 2020, 12:01 PM , By : Adrian Jaraine
Making a native library for Java that uses fftw3
Making a native library for Java that uses fftw3
I wish this helpful for you I get it... I have to link the fftw3 library when compiling the cpp file:
TAG : java
Date : November 22 2020, 12:01 PM , By : Kha Led
How to display two fields in gxt ComboBox?
How to display two fields in gxt ComboBox?
I wish this helpful for you LabelProvider is in fact the only clean way to go, but you need only one LabelProvider:
TAG : java
Date : November 22 2020, 12:01 PM , By : MR FRESH
Tips: wrapping class in java in order to add new methods
Tips: wrapping class in java in order to add new methods
I think the issue was by ths following , First, your private wrappedSequence = null; has no type. I suppose you meant private Sequence wrappedSequence = null;
TAG : java
Date : November 22 2020, 12:01 PM , By : Hukunooy Hukunooy
Add method for lists with lombok
Add method for lists with lombok
like below fixes the issue 1) I couldn't find a ticket for it, and, based on the comment on the other answer, I filed one: https://github.com/rzwitserloot/lombok/issues/1905 So let's see :)2) For a single collection, it seems that @Delegate could do
TAG : java
Date : November 22 2020, 12:01 PM , By : Wojtek Regulski
Insert images in listview of Adapter class according to the condition of Main Activity class
Insert images in listview of Adapter class according to the condition of Main Activity class
With these it helps My title might seems unclear to you. , ok I managed to answer this way; In model class;
TAG : java
Date : November 22 2020, 12:01 PM , By : abdellah
Invoking default methods from lambdas
Invoking default methods from lambdas
wish of those help That would lead to a StackOverflowError : bar calls combine, which calls bar, which calls combine...You need to recursively refer to sc in its definition (you can't use this in a lambda to refer to the object being created by the l
TAG : java
Date : November 22 2020, 12:01 PM , By : Kofi Operon

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