question: private static void _init ( ) { addMethod ( "iConomy" , new com . earth2me . essentials . register . payment . methods . iCo6 ( ) ) ; addMethod ( "iConomy" , new com . earth2me . essentials . register . payment . methods . iCo5 ( ) ) ; addMethod ( "BOSEconomy" , new com . earth2me . essentials . register . payment . methods . BOSE7 ( ) ) ; addMethod ( "Currency" , new com . earth2me . essentials . register . payment . methods . MCUR ( ) ) ; Dependencies . add ( "MultiCurrency" ) ; addMethod ( "Vault" , new com . earth2me . essentials . register . payment . methods . VaultEco ( ) ) ; }
target:  Implement all methods along with their respective name & class.