spring - What is difference between singleton and prototype bean?

Question

i'm new to spring and i read this :

Basically a bean has scopes which defines their existence on the application

Singleton: means single bean definition to a single object instance per Spring IOC container.

Prototype: means a single bean definition to any number of object instances.

So What is the "object instance" .

Answer 1

Prototype scope = A new object is created each time it is injected/looked up. It will use new SomeClass() each time.

Singleton scope = (Default) The same object is returned each time it is injected/looked up. Here it will instantiate one instance of SomeClass and then return it each time.

See also:

• Spring Bean Scopes