forward()

sendRedirect()

forward() is a method in RequestDispatcher

sendRedirect() is a method in HttpServletResponse.

Redirection will happen from server

Redirection will happen from client after response is given to the client.

request and response objects are required.

Only response object is required.

We can use the relative path for forwarding.

We have to use the absolute path for redirecting.

The request can be transferred to another resource only within the server.

The request can be transferred to another resource both within and outside the server.

It is faster and efficient.

It is slower.