i am trying to create a turn-base card game in Vaadin-Java, everything was going well so far, but i have a problem with pushing Vaadin Images to other UI. I did copy Broadcast/BroadcasterView Class fr...

I want to use web sockets because I need to notify my users when there is a new message for them. And I’ve done a lot of research and I’m pretty sure I need to use WebSockets for this problem. I was a...

I'm trying to add a border (filled with 0's) around an existing array. My code: a = np.random.random((4, 5)) m, n = a.shape b = np.zeros((m+1, n+1)) b[1:-1,1:-1] = a a,b but I got a error: ValueError...

I want to broadcast live music from a server to around 100 mobile phone clients in a local area network. The goal is a setup known from silent-discos, but over IP with mobile phones as receivers. The ...