Network parameters encapsulate some of the differences between different Bitcoin networks such as the main network, the testnet, regtest mode, unit testing params and so on.
Class Summary Class Description AbstractBitcoinNetParamsParameters for Bitcoin-like networks. MainNetParamsParameters for the main production network on which people trade goods and services. NetworksUtility class that holds all the registered
NetworkParameterstypes used for address auto discovery.
RegTestParamsNetwork parameters for the regression test mode of bitcoind in which all blocks are trivially solvable. TestNet3ParamsParameters for the testnet, a separate public instance of Bitcoin that has relaxed rules suitable for development and testing of applications and new Bitcoin versions. UnitTestParamsNetwork parameters used by the bitcoinj unit tests (and potentially your own).