We have a project for a course where we need to implement a use case(called "Chat interaction") of a bigger project. The project represents a web interface for participants at the 4 day race in Nijmegen.
Besides other things, the interface should contain a chatting service, where you can send messages(and also pictures and videos) and they appear in a chat; you can "filter" the messages by selecting a filter, and the ones which are according to said filter will show bolded + some other small interactions.
I have experience with Java and have worked with Java Applications. The interface just needs to simulate the working project, reason for which the course lecturer said we could also use PowerPoint and their hyperlinks to "make it look like it works". I have tried the mainstream web page creating service and they are no good; Justinmind seems promising but I can't get it to work. Maybe Java application would be simplest but I am looking for something that would maybe take less time.