Choosing a Local Port :
- We can also specify a local port number,
- Setting the port to 0 tells the system to randomly choose an available port.
- If we need to know the port we\'re connecting from, we can always get it with getLocalPort().
Socket webMetalab = new Socket(\"metalab.unc.edu\", 80, \"calzone.oit.unc.edu\", 0);