Spring loO ·Inversion of Control dependency injection It is a process whereby objects define their dependencies,that is,the other objects they work with,only through constructor arguments,arguments to a factory method, or properties that are set on the object instance after it is constructed or returned from a factory method.Spring IoC • Inversion of Control – dependency injection • It is a process whereby objects define their dependencies, that is, the other objects they work with, only through constructor arguments, arguments to a factory method, or properties that are set on the object instance after it is constructed or returned from a factory method