Parameters for Bitcoin-like networks.
Parameters for the main production network on which people trade goods and services.
Utility class that holds all the registered NetworkParameters types used for address auto discovery.
Network parameters for the regression test mode of bitcoind in which all blocks are trivially solvable.
Parameters for the testnet, a separate public instance of Bitcoin that has relaxed rules suitable for development and testing of applications and new Bitcoin versions.
Network parameters used by the bitcoinj unit tests (and potentially your own).