Difference between returning references and returning objects [closed]

Difference between returning references and returning objects [closed]

References

Reference NO 1

http://stackoverflow.com/questions/3431484/when-to-return-a-pointer-scalar-and-reference-in-c

Reference NO 2

http://www.cse.buffalo.edu/~mjp44/courses/sp09/cse250/overview.html

Reference NO 3

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions_and_function_scope

Reference NO 4

http://php.net/manual/en/language.oop5.references.php

Reference NO 5

http://www.kdgregory.com/index.php?page=java.refobj

Reference NO 6

http://docs.python.org/reference/datamodel.html

Reference NO 7

http://docs.jboss.org/hibernate/orm/3.3/reference/en-US/html/objectstate.html

Reference NO 8

http://msdn.microsoft.com/en-us/library/system.object.memberwiseclone.aspx