Dependency injection is a design pattern in which an object or function acquires other objects or functions on which it depends on. Dependency Injection is an essential component of the Spring framework, via which the Spring container injects items into different items or dependencies. 

Two types of Dependency Injection are available in Spring Framework:

1. Setter Dependency Injection, and
2. Constructor Dependency Injection

In the case of Constructor Dependency Injection (CDI), the DI will be injected with the help of constructors. Now to set the Dependency Injection as Constructor Dependency Injection in the bean, it is done through the bean-configuration file. For this, the property set with the CDI is declared under the tag in the bean-config file. So in this video, let's look at the detailed explanation of Constructor Dependency Injection in Spring with Example.

Spring Dependency Injection with Example: https://www.geeksforgeeks.org/spring-dependency-injection-with-example/
Spring – Injecting Objects By Constructor Injection: https://www.geeksforgeeks.org/spring-injecting-objects-by-constructor-injection/