What are the different forms of spring inversion of control?

There are several forms of Inversion of Control (IoC) in Spring: 1. Constructor Injection: passing dependencies to a class through constructor parameters. 2. Setter Injection: setting dependencies through public setter methods. 3. Interface Injection: injecting dependencies through interface methods. 4. Contextualized Dependency Lookup: obtaining dependencies from the container’s context. 5. Annotation-based Injection: marking dependencies that need to be injected with annotations. 6. Autowiring: automatically connecting dependencies to classes that need them. 7. Dependency Lookup: finding dependencies through the container. These forms can be used individually or combined, depending on specific needs and scenarios.