What do i do to be able to use a handler to update my TextView every 2 secs because right now it comes up with ‘cannot resolve symbol”Handler”‘ Answer Check your activity imports and add this line to the class:
My goal is to create a GridView that is resizable, always square and contains an equal number of rows and columns, making their cells also square, similar to a Reversi or Chess board. Here’s a small illustration, the grid is centered horizontally on the content pane. I’ve tried a multitude of different binding variants and layouts, but I can’t quite
I have vaadin grid, and it’s great that it has lazy data loading from the box. But for some reasons I have custom filters, which I use via CallbackDataProvider<> dataProvider.fetch(Query query) Query object has parameters for loading by portions (offset and limit), so I need to set it dynamically (?) and somehow listen grid scrolling event to load next part
Is it possible to use a chart’s legend to toggle show/hide a series? I got a LineChart with a legend and there are too many Series so you can’t read out the information well. I was wondering if there …
I am receiving an error when running my spring-boot application with embedded-tomcat (haven’t tried with server tomcat yet). java.lang.IllegalStateException: Tomcat 7 reflection failed at org….
I’m trying to use SPNEGO (Kerberos) authentication with Active Directory – with CAS server (github). Here is official instruction: https://apereo.github.io/cas/5.1.x/installation/SPNEGO-Authentication.html I used this template: https://github.com/apereo/cas-overlay-template So pom.xmlis taken from there. Unfortunately, I only receive this exception: Question: What does it means? Which configuration element could make this issue? Answer I found the solution. In short: I have bad cas.authn.spnego.jcifsServicePrincipal in
I am creating OMR scanner in java. I have List of which contains contours from image. i want to create array of List. how can i accomplish it? this is what i have right now What i want to do is so that i can store array of countours() for each question. Like  contour1,contour2,contour3,contour4,contour5  contour1,contour2,contour3,contour4,contour5  contour1,contour2,contour3,contour4,contour5 ………………………….
One way to configure Spring to rollback on a non RuntimeExceptions is using @Transactional(rollbackFor=…) annotation on the service classes. The problem with this approach is that we need to define (…
I’ll try to use a recursive method to print pascals triangle to the standard output. I started by making an iterative method to get an idea of how I wanted the method to work. See the code below. Javadoc and the signature of binom Then i began to work on the recursive method. I can not use any class variable
I have created several SQS queues in the management console. All the queues have full access permission (Allow – Everybody – All SQS Actions) I have created necessary credentials and can connect to AWS. Now I am trying to connect to created queues: But nothing is displayed. At the same time, if I create queue programatically: It is listed and