JAVA QUESTIONS

Java + RestFB API: Getting fresh Page Access Token without messing with AppID, appSecret

With these it helps There is no automatic process to obtain an access token. If there was, it will defeat the whole purpose of the OAuth flow. For pet projects and tests it's okay to use the Graph API Explorer but for public applications involving us

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954298

Password hash being generated differently every time

seems to work fine You're converting passHash, a byte array, to a string with toString. This is not actually getting at the contents of your array at all—Java's implementation of toString on arrays is rather unhelpful, and it simply prints out a part

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954272

Spring dispatcher-servet.xml config

To fix this issue you could import xml file into your dispatcher's bean xml file that way you won't have to copy all beans into single file

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954261

Java array definitions

seems to work fine Split the definition of each variable per line and then you will realize how each operation compiles (or not):

TAG : java

Date : November 22 2020, 01:01 AM , By : Inno Cabije

Is the libcurl supported in the latest android versions

this will help The answer is no. Libcurl does not exist in the external packages in the android source code. it should be supported in a custom android version.

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954219

How can I get the Object from a Field/Class using reflection?

fixed the issue. Will look into that further You need to create an instance. One way is via c.newInstance, which if this is a JavaBean should be all you need (it attempts to invoke the zero-args constructor for the class). Otherwise, you need to find

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954211

characters posted from browser encoded with "iso-8859-1" however it should be "UTF-8"

this one helps. I defined the encoding filter refer to this document. And it works.

TAG : java

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

File Chooser display with a button click. Java Swing

this one helps. I have a Java assignment in which I need to build a program for exchanging information between students. I am using IntelliJ IDEA and a plugin called JFormDesigner for designing the GUI. I want do display a file chooser when clicking

TAG : java

Date : November 22 2020, 01:01 AM , By : Mr.Wizard

GPS data comparison after smoothing

To fix this issue Generally, there is no universally valid way for comparing two datasets, since it completely depends on the applied/required quality criterion.For your appoach

TAG : java

Date : November 22 2020, 01:01 AM , By : Danny Dub

one server for multiples clients Java

wish help you to fix your issue 1) I should create a thread every time I read a client in the server A, to work with data? Yes. These worker threads are known as worker thread. If you don't then you would block next request while reading and processi

TAG : java

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

Hide Calendarview from DatePicker programmatically in API 21

wish of those help The problem in Android 5.0 is the "mode" which determines whether to use a calendar or not is read at construct time, and in code you can't set the mode until after it has been constructed, thus it's too late. (Source is here: Date

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954158

Why does my move() method not keep the ball in bounds?

To fix this issue Your move is wrong. The logic of it is false. You want the ball to bounce so make its movement reverse when it hits a wall. What you've done is : if it is outside get it inside and when inside try to get it outside! Change to:

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954134

JAXB 2 Maven plugin - Force java source generation, to use collection for child?

I hope this helps . Since you probably just need the collection method in order to implement a certain interface, I think the easiest would be to use something like the Code Injector plugin to generate an additional getFilePaths() method.See these an

TAG : java

Date : November 22 2020, 01:01 AM , By : user2954117

Calling a parametrized method

this will help java.lang.Integer does not implement the Comparable interface that you just wrote.You should delete that interface and use the built-in one, which it does implement.

TAG : java

Date : November 21 2020, 07:31 AM , By : Malcolm Young

Get annotation of function reference

To fix the issue you can do I would like to do so something like this: , Your foo method receives a value of some type. Given

TAG : java

Date : November 21 2020, 07:31 AM , By : Ben Plassman

Find the highest N numbers in an infinite list

may help you . You don't need nested loops, just keep inserting and remove the smallest number when the set is too large:

TAG : java

Date : November 21 2020, 07:31 AM , By : user2954019

Android sliding tabs - 2 line text on tabs

should help you out I came across this image online and I was wondering: is it possible to have a two line text view for one of my tabs within my sliding tabs project? , Use this in the TextView returned from createDefaultTabView() method

TAG : java

Date : November 21 2020, 07:31 AM , By : Aki

What's the format of this Date

may help you . The docs said:

TAG : java

Date : November 21 2020, 07:31 AM , By : Evie

How to create InternalFrame per menuOption and then select between them

help you fix your problem Solved it by using a variable which was set to true if frame was created

TAG : java

Date : November 21 2020, 07:31 AM , By : user2953977

i get the data from 1st activity. in this 2nd activity, i try to input a value, so that y=beta0 +beta1*x. but when i inp

I hope this helps . Extract the values from the bundle in the same form as you put them in. So in this case you need to change it to:

TAG : java

Date : November 21 2020, 07:31 AM , By : user2953970

mapreduce using NIO on HDFS

this will help I would love to use ByteBuffer and file locks (NIO). is this possible in this framework ?

TAG : java

Date : November 21 2020, 07:31 AM , By : Heba Hamdan

manipulate JSON array in Spring Hibernate

To fix the issue you can do I'd use transient variables as a solution for this problem. I don't think there is a better solution for this. You may also try hibernate interceptors for this as a solution.

TAG : java

Date : November 21 2020, 07:31 AM , By : user2953899

Unexpected compiler warning for "<T extends ...>" return type

will help you The generic method in Example is supposed to work where T can be any type extending Example, but you have tried to implement it in ExampleImpl in such a way that it always returns an ExampleImpl. This may be ok if ExampleImpl is the onl

TAG : java

Date : November 21 2020, 07:31 AM , By : user2953896

How do I fix 'Source not found' error when debugging in Eclipse, using Selenium WebDriver?

this will help This needs selenium-jar SOURCE files. In case you do no intend to see internals of Selenium Jars(which is a rare case), then just Step Over(F6) instead of Step Into(F5)Hope this helps!

TAG : java

Date : November 21 2020, 07:31 AM , By : Netrunner

Generate random numbers from 0 to 7 with every number appearing 2 times in java ADT

help you fix your problem A straightforward way is to do it with Collections.shuffle().Pseudocode:

TAG : java

Date : November 21 2020, 07:31 AM , By : Michael Allegrini

Resources not being released

wish of those help The URLClassLoader class already has a close() method. The close() method will close any Jar file that are opened with the URLClassLoader. This should prevent the "file already in use" exception.

TAG : java

Date : November 21 2020, 07:31 AM , By : cmac17

sbt compilation error: no augmentString method in StringOps

I wish this help you Not sure but it may be an issue with java 8. From typesafe blog for scala 2.11 The Scala 2.11 series targets Java 6, with (evolving) experimental support for Java 8. In 2.11, Java 8 support is mostly limited to reading Java 8 byt

TAG : java

Date : November 21 2020, 07:31 AM , By : Diego Dietdricks

installing Apache Ant 1.8.4 on centos

I hope this helps . There may be a way of installing Ant as a package. On the Apache Ant website, you do it manually. The tarball or zip provided has the entire Ant package installed. It's not that difficult: Unzip or untar it to a special directory

TAG : java

Date : November 21 2020, 07:31 AM , By : Laura Rodriguez Pere

GTX 3.0 Grid Widget - How to refresh/reload a grid

it helps some times I understand that grids work via stores, in my instance a ListStore. Is there a way I can make a call to the grid if I alter the store to reload/refresh the data? , Try this :

TAG : java

Date : November 21 2020, 07:31 AM , By : user2953795

java regex pattern to format number with space

wish helps you If it's only 2 spaces you need, capture the 2 groups and write them back out with spaces:

TAG : java

Date : November 21 2020, 01:01 AM , By : Douglas Matheus

Jsoup .select returns empty value but element does contains text

may help you . It looks like default HTML parser can't recognize as valid tag and is automatically closing it which means that content of this tag is empty.To solve this problem instead of HTML parser you can use XML parser which doesn't care that mu

TAG : java

Date : November 21 2020, 01:01 AM , By : user2953698

Volley ui freeze on parsing data

seems to work fine I'm using this code for sending data to server , but when i want to parser response data on volley onResponse method , my UI freezing . , Volley onResponce work inside the UI thread

TAG : java

Date : November 21 2020, 01:01 AM , By : Edrian Jon Deray

How can I close the main GUI in Java SE?

I hope this helps you . Using swing, I want to close my mainGUI with "setVisible(false)", how can I close it when I opened it like this: , It depends the place you wanna do that:

TAG : java

Date : November 21 2020, 01:01 AM , By : Jonas Michiels

2nd parameter of Java GridLayout(a,b,x,y)?

this will help Look at the Java API: http://docs.oracle.com/javase/7/docs/api/java/awt/GridLayout.html Here is a small example from the Java API:

TAG : java

Date : November 21 2020, 01:01 AM , By : user2953684

Why are wait, notify and notifyAll methods of the class Object?

wish helps you The fact that methods are inherited does not violate the Single Responsibility Principle. It could potentially violate the SRP if those methods could be overridden. But they cannot, they are declared final. The SRP defines reponsibilit

TAG : java

Date : November 21 2020, 01:01 AM , By : user2953679

Apache oltu oauth2 ask token over SSL

it helps some times URLConnectionClient uses HttpsURLConnection so your code should work; have you tried?

TAG : java

Date : November 21 2020, 01:01 AM , By : Sandro Cicero Dos Sa

Latin letter regular expression in Java

Any of those help The \p{IsLatin} character class will do this.I.e., System.out.println(someString.matches("\\p{IsLatin}+"));

TAG : java

Date : November 21 2020, 01:01 AM , By : Sandro Vita

How can a 21 byte UTF-8 sequence come from just 5 characters?

should help you out Your "5 character" string actually consists of 7 Unicode code points: x0E2D; THAI CHARACTER O ANG x0E20; THAI CHARACTER PHO SAMPHAO x0E34; THAI CHARACTER SARA I x0E0A; THAI CHARACTER CHO CHANG x0E32; THAI CHARACTER SARA AA x0E15;

TAG : java

Date : November 21 2020, 01:01 AM , By : Umar Ashiq

SBT RabbitMQ Java import not available

Hope this helps The issue was with another import. I am using IntelliJ, and SBT importing failed silently with no errors until I used the 'SBT tasks' pane and the 'Refresh all SBT projects' button. Once the offending import was gone, everything works

TAG : java

Date : November 21 2020, 01:01 AM , By : user2953625

Consume multiple resources in a RESTful Web Service

I wish this helpful for you One solution is to just read from an InputStream. You could wrap the InputStream in a ZipInputStream. With ZipInputStream you can get a ZipEntry with ZipInputStream.getNextEntry(), then you can get the file name with ZipEn

TAG : java

Date : November 21 2020, 01:01 AM , By : Felix Thomsen

M2E Failed to load all dependencies

like below fixes the issue I found the solutionThe machine where we faced this issue, had java 1.6 executable copied in system32 folder, and when we removed those files and updated path to use jdk 1.7, issue got resolved....

TAG : java

Date : November 21 2020, 01:01 AM , By : Ricardo Lozano

Implementing a class of "constants" initialized at application start not at compile time

hope this fix your issue Well, using system properties is a way of doing it unless there is a huge amount of constants.

TAG : java

Date : November 21 2020, 01:01 AM , By : user2953583

IntelliJ Idea 14: How do I import all existing idea modules in a folder tree into a project

I think the issue was by ths following , Go to Scopes in Settings Define a scope with the pattern file:*.iml Switch the Project view to the scope you've defined Select the .iml files there Invoke "Import N modules" action from the context menu

TAG : java

Date : November 21 2020, 01:01 AM , By : Medea Soluciones Tec

How can I verify the username and password without opening the login portal?

this will help Java doesn't try to implement telepathic insight into web servers mostly for security reasons but mainly because no one could demonstrate such a technology is feasible.What you can do is use a HTTP client framework like Apache's HttpCo

TAG : java

Date : November 21 2020, 01:01 AM , By : user2953563

how to get the variable name of a JLabel when its clicked

it fixes the issue There is no such simple way. Think about it: A single JLabel object could be referenced by many separate variable names:

TAG : java

Date : November 21 2020, 01:01 AM , By : FuzzyTom

Android sliding tabs - set width of tabs programmatically

fixed the issue. Will look into that further With my sliding tabs project, how can I programmatically set the width of the tabs so that they use the whole space of the sliding tab strip and are each equal in width size? I've tried using the code belo

TAG : java

Date : November 21 2020, 01:01 AM , By : user2953556

How to Kill Selenium "Click" Thread After Timeout

Does that help Currently, I'm utilizing a working method for killing a Selenium get thread after a specified timeout that I found here on Stack Overflow ...

TAG : java

Date : November 21 2020, 01:01 AM , By : Myles

Java - download a file through network with a buffer

hope this fix your issue That's because available() doesn't do what you think it does. Read its API documentation. You should simply read until the number of bytes read, returned by read(), is -1. Or even simpler, use Files.copy():

TAG : java

Date : November 21 2020, 01:01 AM , By : user2953487

haw to validate values in set methods?

To fix the issue you can do You could do something like the following. This separates the code into individual methods. This is how you should create your methods. They should do s specific thing. This also uses recursion, which is when a method call

TAG : java

Date : November 21 2020, 01:01 AM , By : nany

Cassandra: Writes after setting a column to null are lost randomly. Is this a bug, or I am doing something wrong?

With these it helps This appears to be an issue where a row is updated right after it's created. If you were to wait a small period of time after the second update, you would get the correct value, that does seem to be an issue, but perhaps only noti

TAG : java

Date : November 20 2020, 01:01 AM , By : Hazem Tawfik El-kili

SAML marshalling opensaml and java

seems to work fine I've noticed that if you don't initialize ("bootstrap") the SAML configuration, you get a NullPointerException (rather unhelpfully, I might add) when you try to construct the SAML.

TAG : java

Date : November 20 2020, 01:01 AM , By : user2953458

Printing the values as it is using BigDecimal in Java

I wish this help you I need to store the exact values which is in a csv to a database. The columns has money values . So making use of BigDecimal to store money values. , You can use the constructor with String parameter.

TAG : java

Date : November 20 2020, 01:01 AM , By : Arkin

Getting incorrect output when using the Java method indexof in combination with substring to create a new string

Does that help Change the following lines:int eq = relativeDN.indexOf('='); String sub = relativeDN.substring(0, eq); in your for loop to

TAG : java

Date : November 20 2020, 01:01 AM , By : Tony

check if a form field has changed using a play Form object

will help you In shortest words Form isn't able to check if fields are changed it's just stateless between request and to check it you just need to get record from DB and compare field, by field.Also you shouldn't rely on client-side validation as it

TAG : java

Date : November 20 2020, 01:01 AM , By : user2953409

How would I change this code to make it so that it asks me the location of the file that I want to load?

it helps some times One approach would be to use a main loop asking for a file name and quitting program execution when no input is given.Therefore I'd refactor most code of your main method into another function e.g. processFile(String fileName).

TAG : java

Date : November 20 2020, 01:01 AM , By : user2953401

looking for Sorted Heap & Concurrent Queue in gs-collections library

Any of those help Not sure about GS collections and your cases, but you also might be interested in these libraries: https://github.com/JCTools/JCTools for very efficient concurrent queues http://fastutil.di.unimi.it for priority queues

TAG : java

Date : November 20 2020, 01:01 AM , By : user2953400

Defining alias for Tomcat Context inside web application

should help you out You'll note from the error message and from Tomcat 8 documentation here, that the aliases property no longer exists.Refer to The Migration Guide to fix it (and possible other problems).

TAG : java

Date : November 20 2020, 01:01 AM , By : user2953365

update query doesnt work oracle and jsp

Hope that helps Please take care that guncelleForm.getId() is equal to one of the kisi_id's in KISI? May be your instance guncelleForm isn't initialized as intended. Keep in mind that = NULL (comparison to NULL) is always false!

TAG : java

Date : November 20 2020, 01:01 AM , By : user2953362

How to reference an enum which implements an interface from a generic class

should help you out The extends keyword in the generics context can represent both the normal extends or the implements meanings. So to declare the type parameter as a subtype of the interface you can do the following:

TAG : java

Date : November 20 2020, 01:01 AM , By : azeus

JavaSparkContext not serializable

it should still fix some issue No, JavaSparkContext is not serializable and is not supposed to be. It can't be used in a function you send to remote workers. Here you're not explicitly referencing it but a reference is being serialized anyway because

TAG : java

Date : November 20 2020, 01:01 AM , By : npasto