Spring Boot can help us create Spring applications much faster than otherwise. Spring Boot is based on "conventions over configuration" and you have to do very little in configuring an application. For example, you can create a web application with an embedded server in few minutes and you can "just run" them like a desktop application.
Beans in Spring can be either singletons or prototypes. Singleton means that only one instance of the bean will be maintained by the Spring and will be returned every time you call the getBean() method. If you set the scope to prototype, then a new bean will be created every time you call the getBean() method.
The default is singleton. In Java configuration, you can specify that a bean scope is prototype by specifying @Scope("prototype") over the bean definition.
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