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JAVA QUESTIONS

What is Matrix.frustumM(mProjMatrix, 0, -ratio, ratio, -1, 1, 3, 7); in OpenGL ES 20?
What is Matrix.frustumM(mProjMatrix, 0, -ratio, ratio, -1, 1, 3, 7); in OpenGL ES 20?
Any of those help View frustum is just a visual representation of perspective projection that is used to convert 3D point in the world coordinate space to the 2D point on the screen.There're multiple ways to define the projection matrix (at least tha
TAG : java
Date : November 24 2020, 05:44 AM , By : Dotnet Maverick
Opening 2 audio-files and playing them simultaneously
Opening 2 audio-files and playing them simultaneously
wish helps you Put the opening and the playing into two separate threads, then start them. The two threads can be synchronized so the playback starts synchronously.
TAG : java
Date : November 24 2020, 05:44 AM , By : Shusheng Li
Accept a word then print every letter of that word on new line in java?
Accept a word then print every letter of that word on new line in java?
Does that help I need to write a program in Java that will accept a string/word then print every letter of that word on a new line. For example, the machine accepts zip then outputs: , Easy:
TAG : java
Date : November 24 2020, 05:44 AM , By : Mr.Liam
How can I send http request to another servlet
How can I send http request to another servlet
hope this fix your issue I want to trigger App2 from App1,means If you trigger App1 with corresponding URL in browser,It will be trigger App2.
TAG : java
Date : November 24 2020, 05:44 AM , By : igycrctl
Reattaching a detached instance: hibernate lock()
Reattaching a detached instance: hibernate lock()
it fixes the issue I'm a bit confused. I don't understand why the changes made before lock()/buildLockRequest() are propagated to the database.
TAG : java
Date : November 24 2020, 01:01 AM , By : itsvijayd
How to add similar objects into an array?
How to add similar objects into an array?
wish help you to fix your issue This cuts down on a little bit of code. Instead assigning your cards to variables, and then putting those variables into an array, you define and assign at the same time:
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957676
Changing views within an activity
Changing views within an activity
help you fix your problem Two possibilities here depending on what you're really trying to accomplish.1: If this is just another xml layout you want to display I would suggest using fragments. http://developer.android.com/guide/components/fragments.h
TAG : java
Date : November 24 2020, 01:01 AM , By : Gompie
Conditions in while loop
Conditions in while loop
help you fix your problem In your second version, Keyboard.isKeyDown(Keyboard.KEY_ESCAPE) is evaluated once and its value is assigned to ESC, which remains constant. It's either always true or always false (more likely).Your first version evaluates !
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957667
Why do we need Set and Map for Java Enum
Why do we need Set and Map for Java Enum
To fix this issue Consider a scenario where you are defining flyweight for each shape object like:
TAG : java
Date : November 24 2020, 01:01 AM , By : harleshinn
Converting a list of objects to a list of optional objects in Java
Converting a list of objects to a list of optional objects in Java
will be helpful for those in need You forgot to collect the elements of the Stream in a list. It should be:
TAG : java
Date : November 24 2020, 01:01 AM , By : Veeshal
how threads work in java
how threads work in java
will help you Here is a code in which I am confused at some areas. , You are using patience variable in here:
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957632
Importing/Exporting Google Contacts in Java App
Importing/Exporting Google Contacts in Java App
it helps some times I'm developing a Java Application (A phone-book in fact) and I need a java library to import/export my google account's contacts in the application. Is there any library which makes it easier than the APIs google has introduced in
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957631
Finding non duplicate element in an array
Finding non duplicate element in an array
fixed the issue. Will look into that further Since this is almost certainly a learning exercise, and because you are very close to completing it right, here are the things that you need to change to make it work: Move the declaration of flag inside t
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957624
How to prevent JDialog from popping up in front of the JFrame when I close the JFrame?
How to prevent JDialog from popping up in front of the JFrame when I close the JFrame?
Any of those help Generally when you create a JDialog you specify a JFrame as the owner. This is so that when you click on the frame Icon on the task bar all the child dialogs can be displayed with the JFrame, otherwise there is no way to activate th
TAG : java
Date : November 24 2020, 01:01 AM , By : C.M.Lizama
Program hangs indefinitely after two threads print even off numbers alternatively
Program hangs indefinitely after two threads print even off numbers alternatively
Does that help Having printed out 100, the even thread then enters lock.wait();. There is nothing to take it out of that wait (the other thread has either already terminated, or will terminate imminently), so it sits there forever.
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957616
Does JPA support getting data from Database Views?
Does JPA support getting data from Database Views?
this one helps. Yes. JPA Supports getting Data from Database view. It is possible to create Entity Class from Database view, But the problem is, every column from database view is treated as Object Class by JPA.(You will get Object as return type in
TAG : java
Date : November 24 2020, 01:01 AM , By : ACrain
docx4j traversalutil finds no TextElements in the Paragraph node
docx4j traversalutil finds no TextElements in the Paragraph node
To fix this issue Looking at code here, you dont have any element in arrayList and you are trying to getValue from null and hence end up in NullPointerException.
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957584
How to create a ListView with AlertDialog.Builder onItemClickListener?
How to create a ListView with AlertDialog.Builder onItemClickListener?
Any of those help I have a problem with adding AlertDialog.Builder with ListView and onItemClickListener...how to do it? Can you give an example of code , try this
TAG : java
Date : November 24 2020, 01:01 AM , By : redbike
Run code after Spring context has been initialized in web app deployed on Tomcat
Run code after Spring context has been initialized in web app deployed on Tomcat
hop of those help? You can write a 'ServletContextListener' and register it in the web.xml. In your implementation you can rely on spring frameworks WebApplicationContextUtil to get a handle to the spring application context.
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957553
Gradle project does not build when I add RoboBlender
Gradle project does not build when I add RoboBlender
I hope this helps . Well I found a workaround, I just disabled AnnotationDatabase processing and removed RoboBlender dependency and that fix my problem. I would still like to know why I'm having this problem in the first place.
TAG : java
Date : November 24 2020, 01:01 AM , By : Madape Banjo
java.lang.VerifyError with Mockito 1.10.17
java.lang.VerifyError with Mockito 1.10.17
wish of those help The problem here is an unfortunate constellation between TestNG, JUnit and Mockto. To fix your issue, you just need to add a dependency to JUnit 4.0 or greater (the most recent version is currently 4.12):
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957514
Ivy can not resolve the scope of a dependency which is a dependency of a transitive dependency
Ivy can not resolve the scope of a dependency which is a dependency of a transitive dependency
I think the issue was by ths following , I reviewed the ivy usage of the nutch project and apologies but my conclusion is that it's overly complex for the following reasons: "compile" and "test" targets are issuing separate calls to the resolve task
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957494
Cannot assign value to static integer
Cannot assign value to static integer
may help you . Check the following things: That you are running the thread. thread1.start() That you are checking the static variables after the thread has completed. After all the purpose of threads is to run in parallel so you might be checking for
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957481
Use case of method overriding in PHP
Use case of method overriding in PHP
it should still fix some issue I am not sure what you are asking, but I think you just want a php example of method overriding. The Java case, where for instance you have a parent with 2 parameters and you have a child with with an extra parameter is
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957471
Printing and returning the correct list
Printing and returning the correct list
Hope this helps Your while loop does nothing. You should probably put your condition inside it, or it would only be tested for the last value of i.
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957457
Inferring parameter types in a generic class which are nested generic types of provided arguments
Inferring parameter types in a generic class which are nested generic types of provided arguments
it fixes the issue A thought about it a while but I didn’t find any simple generic construct allowing this kind of type inference.Regarding the specialized dummy-argument constructor it’s worth noting that you don’t need to pass an actual Class insta
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957456
How to insert value in console of eclipse using java code
How to insert value in console of eclipse using java code
fixed the issue. Will look into that further If you want to get the input from the user from console use java.util.Scanner class
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957453
Java parsing date with timezone from a string
Java parsing date with timezone from a string
To fix the issue you can do I want to parse a date with timezone from a string in the format "31-12-2014 18:09 +05:30". I tried to parse using simple-Date-Format using "d-MM-yyyy HH:mm ZZ" and "d-MM-yyyy HH:mm Z". But it is giving me a un-parables da
TAG : java
Date : November 24 2020, 01:01 AM , By : foreveremain
Passing outputs between spring batch steps
Passing outputs between spring batch steps
I wish this helpful for you I can see at least two options that are both viable.Option 1: setup the job as one step You can setup your job to contain one step where the reader simply reads the input from your URL and the writer posts to your queue.
TAG : java
Date : November 24 2020, 01:01 AM , By : Jose Rodriguez
How should I protect default values, by id or add another attribute to the tables?
How should I protect default values, by id or add another attribute to the tables?
seems to work fine Are these UUIDs being generated in the database or application level? In my opinion, you should keep not have hard-coded UUIDs and use a isDefault field instead. What if tomorrow your requirements change and for whatever reason you
TAG : java
Date : November 24 2020, 01:01 AM , By : Christian Belisle
trying to open new activity from fragment
trying to open new activity from fragment
it helps some times The activity you're trying to start isn't declared in your manifest. Add this to your manifest:
TAG : java
Date : November 24 2020, 01:01 AM , By : MijaelBlanco
how to print a saved txt file in java using a printer
how to print a saved txt file in java using a printer
will help you A simple way to print to a specific printer which you select in a printdialog:
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957393
JavaFX Application crashs when on many WebView Open
JavaFX Application crashs when on many WebView Open
this will help I noticed that jdk version was b13. Thats older. I changed to new one. It works like a charm now.
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957385
Sort and count files according to first letter of file name
Sort and count files according to first letter of file name
wish of those help a classic way to do that is make a Map with each letter a key and the count for that letter the value
TAG : java
Date : November 24 2020, 01:01 AM , By : user2957382
Stream corrupted exception - invalid code type AC [java]
Stream corrupted exception - invalid code type AC [java]
will be helpful for those in need I'm trying to develop a Java client-server application, where multiple clients can connect to the server. I start a separate thread for each incoming client, pass the client socket to the thread, and then open a pair
TAG : java
Date : November 23 2020, 01:01 AM , By : user2957340
Routing Sysout values to JTextArea
Routing Sysout values to JTextArea
Hope this helps The System.out may be redirected with System.setOut(PrintStream). A PrintStream operates on bytes, OutputStream. So one has to make an OutputStream, that does the conversion of those bytes to String (Unicode). Then JTextArea.append ca
TAG : java
Date : November 23 2020, 01:01 AM , By : CII
GWT RPC serialization for Dynamic Host Page
GWT RPC serialization for Dynamic Host Page
it should still fix some issue So thx you @xi-chen and @richard-wallisPart of the solution were discussed on gwt-storage github repo (https://github.com/seanchenxi/gwt-storage/issues/8issuecomment-68443910)
TAG : java
Date : November 23 2020, 01:01 AM , By : user2957321
Best Approch of Returning Value from 'getter' Method
Best Approch of Returning Value from 'getter' Method
To fix the issue you can do The main drawback to this approach is the need to make a clone every time you get an object, which is not ideal, because ideally you prefer your getter to be lightweight.There are two approaches that achieve similar effect
TAG : java
Date : November 23 2020, 01:01 AM , By : b_mitry
Understanding xml schemalocation
Understanding xml schemalocation
help you fix your problem xmlns defines a namespace. If you want to use mvc:xxx you have to define what mvc namespace is.xsi:schemaLocation defines where the XSD(for XML validation) are situated.
TAG : java
Date : November 23 2020, 01:01 AM , By : ShaezoNai
Checking if a PDF is PDF/A 1-a format or not using PDFBOX in java
Checking if a PDF is PDF/A 1-a format or not using PDFBOX in java
I hope this helps . The document from pdfbox shows how to do PDF/A-1b validation:https://pdfbox.apache.org/cookbook/pdfavalidation.html
TAG : java
Date : November 23 2020, 01:01 AM , By : gaosanyong
Difference Between Variable and Identifier
Difference Between Variable and Identifier
hop of those help? Every variable has a name, which is an identifier. Likewise every class has a name, which is also an identifier - as is a method name, and a package name. There are restrictions on what an identifier can look like - for example, it
TAG : java
Date : November 23 2020, 01:01 AM , By : user2957248
How to compute two aggregate functions with Java streams?
How to compute two aggregate functions with Java streams?
I wish this help you I have a list of "Request" objects (id, amount, price) like this , Sure. You'll need the custom aggregation, but not the Pair:
TAG : java
Date : November 23 2020, 01:01 AM , By : user2957242
Parse the value of the json to baseadapter in android?
Parse the value of the json to baseadapter in android?
it fixes the issue Your BaseAdapter implementation is incorrect. It should be maintain some sort of a collection of data. You are instead storing a single item which then repetitively displays itself for however many characters are found in the title
TAG : java
Date : November 23 2020, 01:01 AM , By : user2957221
JavaFX animation on raspberry pi
JavaFX animation on raspberry pi
should help you out Animations do work in the Raspberry Pi, for sure.The problem with your animation is it's using a rotation over the Y axis of the image, which means it is rotated "out" of the screen. And for that you need 3D rendering capabilities
TAG : java
Date : November 23 2020, 01:01 AM , By : drench79
Solve "unchecked warning" in Java avoiding @suppressWarnings
Solve "unchecked warning" in Java avoiding @suppressWarnings
Hope that helps This is a Trying to improve my code question. About generics and the unchecked warning; I do know about the @suppresswarnings annotation. The question is what am I suppose to code to suppress it. Take, please, the following code. , Le
TAG : java
Date : November 23 2020, 01:01 AM , By : user2957154
How to specify a new name for a file while moving it to another directory in Java?
How to specify a new name for a file while moving it to another directory in Java?
wish helps you The Apache Commons IO FIleUtils class has the moveFile method. You simply need to specify the "new name" as part of the destFile argument.
TAG : java
Date : November 23 2020, 01:01 AM , By : Stazos
Popup window not showing up with spinner item selection?
Popup window not showing up with spinner item selection?
help you fix your problem remove your CustomOnItemSelectedListener.java class and then use this code
TAG : java
Date : November 23 2020, 01:01 AM , By : Joppy
how to iterate through json objects in java
how to iterate through json objects in java
may help you . You don't have an array - you have properties with names of "000" etc. An array would look like this:
TAG : java
Date : November 23 2020, 01:01 AM , By : RPSR1994
Caused by: java.lang.NoClassDefFoundError: org/springframework/aop/framework/AbstractAdvisingBeanPostProcessor
Caused by: java.lang.NoClassDefFoundError: org/springframework/aop/framework/AbstractAdvisingBeanPostProcessor
I wish this help you You have added a jar dependency of user defined project"PRINT-Common". Can you please provide the POM of that project also. It might be dependency conflict issue between two projects if you are using same dependency of different
TAG : java
Date : November 23 2020, 01:01 AM , By : user2957123
Getting NoClassDefFoundError while running PMD task from Gradle
Getting NoClassDefFoundError while running PMD task from Gradle
fixed the issue. Will look into that further At last found the issue. I needed to resolve pmd and all it's transitive dependencies from a remote repo like Maven Central.
TAG : java
Date : November 23 2020, 01:01 AM , By : user2957120
Matlab drag and drop file from windows explorer to figure (gui)
Matlab drag and drop file from windows explorer to figure (gui)
To fix this issue I tried to implement same functionality as yours and fall into the same exceptions when trying to get transferable data.It is rather unclear if getTransferable fails because of default FlavorMap instantiated in %matlabroot%\sys\java
TAG : java
Date : November 23 2020, 01:01 AM , By : Tansael
How does scala's actor model make use of C threads and native system threads?
How does scala's actor model make use of C threads and native system threads?
should help you out A very rough picture of how native threads are used by Akka is as follows. Akka Actors are objects instantiated by an ActorSystem Then they are scheduled for execution on a Dispatcher. Dispatcher eventually delegates the execution
TAG : java
Date : November 23 2020, 01:01 AM , By : user2957068
Store java.util.Date as key in a Map based on reference equality instead of "value" equality
Store java.util.Date as key in a Map based on reference equality instead of "value" equality
Any of those help You should use java.util.IdentityHashMap for this task. That way you can have equals, but different objects in your Map.EDIT: Your example:
TAG : java
Date : November 22 2020, 03:03 PM , By : Marco
Error when logging into FTP from AsyncTask class using org.apache.commons.net.ftp.FTPClient
Error when logging into FTP from AsyncTask class using org.apache.commons.net.ftp.FTPClient
I wish did fix the issue. You should add the jar file to the libs folder of your project. Also, make sure it's checked under the Order and Export tab.
TAG : java
Date : November 22 2020, 03:03 PM , By : user2957038
creating unique index in mongoDB
creating unique index in mongoDB
fixed the issue. Will look into that further You need to pass a DBObject to the ensureIndex() method.
TAG : java
Date : November 22 2020, 03:03 PM , By : divya B S
hibernate Query to find record based on substring
hibernate Query to find record based on substring
hope this fix your issue I want to make a Hibernate query to check if a string contains a substring. , Try modifying the restriction as follows:
TAG : java
Date : November 22 2020, 03:03 PM , By : user2957032
How many strings are in jvm string pool intern
How many strings are in jvm string pool intern
hop of those help? Starting with JDK7, you can use the -XX:+PrintStringTableStatistics JVM flag to print information about the size of the string table, such as the number of buckets and the size of a bucket.You can also use the jmap tool by calling
TAG : java
Date : November 22 2020, 03:03 PM , By : user2957014
Unable to initialize native-platform. on Jenkins
Unable to initialize native-platform. on Jenkins
will be helpful for those in need I've recently set up for my first time a Jenkins environment for CI. I obviously started having problems right away. I set up the git (which seems to work very nicely) and then gradle. , The actual problem is the one
TAG : java
Date : November 22 2020, 03:03 PM , By : user2957001
How to create a list of dummy files in Java?
How to create a list of dummy files in Java?
will be helpful for those in need I would recommend not mocking File and instead make fake values. Methods that act on File instances tend to care about the file path and/or whether the file exists, so the most straight-forward way to do that is to u
TAG : java
Date : November 22 2020, 03:03 PM , By : user2956995
Docker: Which approach is better? WAR embedded in image or base image + war?
Docker: Which approach is better? WAR embedded in image or base image + war?
Does that help If you want to deploy your code onto a docker orchestration service such as Google Container Engine, Amazon Container Service etc then option 1 is normally the only feasible solution as you don't have access to the host. Option 1 is al
TAG : java
Date : November 22 2020, 03:03 PM , By : user2956904

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