Unity给出了不存在的错误？

Question

我使用Unity连接到服务器使用附加到按钮单击的代码，但是我收到很多没有分号的错误？为什么我会收到这些错误？

public function BTN_Connect() {  
   String message;
   BufferedReader inFromUser = new BufferedReader(new InputStreamReader(System.in));
   Socket clientSocket = new Socket("localhost", 5552);
   DataOutputStream outToServer = new DataOutputStream(clientSocket.getOutputStream());
   BufferedReader inFromServer = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
   message = inFromServer.readLine();
   System.out.println("FROM SERVER: " + message);
   clientSocket.close();
}