Spring Dependency Injection
What is Inversion of control (IOC )? πWhere control of object is transferred to container or framework. πIOC allows container to take control on flow of program. πTo implement IoC, the dependency injection is used. Spring Container π The interface " ApplicationContext " represents the spring container. π Spring container instantiate, configuring and assemble spring beans and manage their life cycle. Spring bean π An object which is managed by spring container is known as spring bean. What is Dependency in spring framework? public class Invoice { String name; Double amount; List<String> items; Vendor vendor; TaxDetails taxDetails; } class Vendor { } interface TaxDetails { } π Invoice class has various instance variables (name, amount, items, vendor, and taxDetails). π If we want to create object of Invoice then we need all instan