Dependency injection (DI) is a technique for achieving loose coupling between objects and their collaborators, or dependencies. Rather than directly instantiating collaborators, or using static references, the objects a class needs in order to perform its actions are provided to the class in some fashion.
Overview (1). Nicky Cruz was leader of a brutal Puerto Rican New York gang called 'The Mau Maus' which ran wild in the mid to late 1950s, before he met the preacher 'David Wilkerson'.verview (1). Nicky Cruz was leader of a brutal Puerto Rican New York gang called 'The Mau Maus' which ran wild in the mid to late 1950s, before he met the preacher 'David Wilkerson'.
Joe Cruz is a firefighter on Squad 3 and the former driver of Truck 81. He is also a protagonist on Chicago Fire. Cruz is a great firefighter who has a troubled younger brother, Leon, in the street gang Insane Kings that he is desperate to keep out of harm's way.