How do different types of Scope in Spring beans differ?

In Spring, there are different types of scope (lifetime) for beans, which determine the lifecycle and visibility of instances:

• singleton (default): one bean instance is created for the entire Spring container. All requests for this bean receive the same object.
• prototype: a new bean instance is created for each request.
• request: the bean lives within a single HTTP request (for web applications).
• session: the bean lives within the user's HTTP session.
• application: the bean lives within the ServletContext (web application).
• websocket: the bean lives within a WebSocket session.

The choice of scope depends on how long the object should exist and in what context it is used.