Socket (Java)

In Java, client sockets and service-side sockets are separate. A client socket is implemented using a class socket, and the commonly used constructors are:

 Public int Port)

This constructor creates a stream socket and connects it to the specified port number on the specified host. However, the socket created by default is blocked, and if the host is not connected, it will block indefinitely until it establishes the initial connection to the host. You can solve this problem by building a non-connected socket and then using a timeout to connect.

Socket (Java)