Java Multiplayer Quiz

Program a simple and plain java client-server application in which several players compete against each other in a quiz. Each quiz question has four possible answers, A through D, with the fastest correct answer winning. Requirements: You may use the entire Unicode character set. The communication between the clients and the server takes place directly via sockets. The server reads the text file (json) with the quiz questions. A quiz question consists of one question, each with four answer options A to D (like “Who wants to be a millionaire?”). This text file will be provided. The players/clients each receive a question with four possible answers from the server at the same time. The player/client with the fastest correct answer gets a point. Every player/client is informed about the current score. You may not use Java Remote Method Invocation (RMI) or any third party libraries, with the exception of JUnit. You can ignore security aspects and the handling of interrupted connections. The user interface can be implemented as a text UI on the console.