When your port 8080 is in use can other program access tha port 8080?

No, when port 8080 is in use by one program, other programs cannot access it simultaneously. Each port can be bound to only one process at a time; if another program attempts to use the same port, it will typically receive an error indicating that the port is already in use. To resolve this, the conflicting program must be stopped or configured to use a different port.